{"id":6628,"date":"2022-02-20T20:10:33","date_gmt":"2022-02-20T14:10:33","guid":{"rendered":"https:\/\/allresultbd.com\/bn\/?p=6628"},"modified":"2022-02-20T20:11:33","modified_gmt":"2022-02-20T14:11:33","slug":"class-7-math-13th-week","status":"publish","type":"post","link":"https:\/\/allresultbd.com\/bn\/class-7-math-13th-week\/","title":{"rendered":"\u09ed\u09ae \u09b6\u09cd\u09b0\u09c7\u09a3\u09bf \u0997\u09a3\u09bf\u09a4 \u09e7\u09e9 \u09a4\u09ae \u09b8\u09aa\u09cd\u09a4\u09be\u09b9\u09c7\u09b0 \u0985\u09cd\u09af\u09be\u09b8\u09be\u0987\u09a8\u09ae\u09c7\u09a8\u09cd\u099f \u09b8\u09ae\u09be\u09a7\u09be\u09a8"},"content":{"rendered":"<p style=\"text-align: justify;\">\u09e8\u09e6\u09e8\u09eb \u09b8\u09be\u09b2\u09c7\u09b0 \u09ed\u09ae \u09b6\u09cd\u09b0\u09c7\u09a3\u09bf\u09b0 \u09b6\u09bf\u0995\u09cd\u09b7\u09be\u09b0\u09cd\u09a5\u09c0\u09a6\u09c7\u09b0 \u09b8\u0982\u0995\u09cd\u09b7\u09bf\u09aa\u09cd\u09a4 \u09b8\u09bf\u09b2\u09c7\u09ac\u09be\u09b8 \u098f\u09b0 \u0986\u09b2\u09cb\u0995\u09c7 \u0995\u09b0\u09cb\u09a8\u09be\u09b0 \u0995\u09be\u09b0\u09a3\u09c7 \u09ae\u09be\u09a7\u09cd\u09af\u09ae\u09bf\u0995 \u0993 \u0989\u099a\u09cd\u099a \u09b6\u09bf\u0995\u09cd\u09b7\u09be \u0985\u09a7\u09bf\u09a6\u09aa\u09cd\u09a4\u09b0 \u0995\u09b0\u09cd\u09a4\u09c3\u0995 \u09aa\u09cd\u09b0\u0995\u09be\u09b6\u09bf\u09a4 \u09e7\u09e9 \u09a4\u09ae \u09b8\u09aa\u09cd\u09a4\u09be\u09b9\u09c7\u09b0 \u0997\u09a3\u09bf\u09a4 \u09a4\u09c3\u09a4\u09c0\u09af\u09bc \u098f\u09b8\u09be\u0987\u09a8\u09ae\u09c7\u09a8\u09cd\u099f \u098f\u09b0 \u09a8\u09ae\u09c1\u09a8\u09be \u0989\u09a4\u09cd\u09a4\u09b0 \u09a8\u09bf\u09af\u09bc\u09c7 \u0986\u099c\u0995\u09c7 \u0986\u09ae\u09be\u09a6\u09c7\u09b0 \u0986\u09b2\u09cb\u099a\u09a8\u09be\u0964 \u0986\u099c\u0995\u09c7 \u0986\u09ae\u09b0\u09be <strong>\u0985\u09a7\u09cd\u09af\u09be\u09af\u09bc:<\/strong> \u099a\u09a4\u09c1\u09b0\u09cd\u09a5; \u09ac\u09c0\u099c\u0997\u09a3\u09bf\u09a4\u09c0\u09af\u09bc \u09b0\u09be\u09b6\u09bf\u09b0 \u0997\u09c1\u09a3 \u0993 \u09ad\u09be\u0997 \u09b8\u0982\u0995\u09cd\u09b0\u09be\u09a8\u09cd\u09a4 \u0995\u09af\u09bc\u09c7\u0995\u099f\u09bf \u09b8\u09ae\u09b8\u09cd\u09af\u09be\u09b0 \u09b8\u09ae\u09be\u09a7\u09be\u09a8 \u0995\u09b0\u09ac \u09af\u09be\u09b0 \u09ae\u09be\u09a7\u09cd\u09af\u09ae\u09c7 \u09a4\u09cb\u09ae\u09b0\u09be \u09e8\u09e6\u09e8\u09eb \u09b8\u09be\u09b2\u09c7\u09b0 \u09e7\u09e9 \u09a4\u09ae \u09b8\u09aa\u09cd\u09a4\u09be\u09b9\u09c7 \u09b8\u09aa\u09cd\u09a4\u09ae \u09b6\u09cd\u09b0\u09c7\u09a3\u09c0\u09b0 \u0997\u09a3\u09bf\u09a4 \u09ac\u09bf\u09b7\u09af\u09bc\u09c7 \u099a\u09a4\u09c1\u09b0\u09cd\u09a5 \u09b6\u09cd\u09b0\u09c7\u09a3\u09c0\u09b0 \u0996\u09c1\u09ac \u09ad\u09be\u09b2\u09cb\u09ad\u09be\u09ac\u09c7 \u09b8\u09ae\u09be\u09a7\u09be\u09a8 \u0995\u09b0\u09a4\u09c7 \u09aa\u09be\u09b0\u09ac\u09c7\u0964<\/p>\n<p style=\"text-align: justify;\">\u09aa\u09cd\u09b0\u09a5\u09ae\u09c7 \u0986\u09ae\u09b0\u09be \u09e7\u09e9 \u09a4\u09ae \u09b8\u09aa\u09cd\u09a4\u09be\u09b9\u09c7 \u09b8\u09aa\u09cd\u09a4\u09ae \u09b6\u09cd\u09b0\u09c7\u09a3\u09c0\u09b0 \u0997\u09a3\u09bf\u09a4 \u09ac\u09bf\u09b7\u09af\u09bc\u09c7\u09b0 \u0985\u09cd\u09af\u09be\u09b8\u09be\u0987\u09a8\u09ae\u09c7\u09a8\u09cd\u099f \u098f\u09b0 \u09aa\u09cd\u09b0\u09b6\u09cd\u09a8 \u099f\u09bf \u09b8\u09ae\u09cd\u09aa\u09b0\u09cd\u0995\u09c7 \u099c\u09be\u09a8\u09ac\u09cb \u098f\u09ac\u0982 \u0985\u09cd\u09af\u09be\u09b8\u09be\u0987\u09a8\u09ae\u09c7\u09a8\u09cd\u099f\u09c7\u09b0 \u09a6\u09c7\u0993\u09af\u09bc\u09be \u09a8\u09bf\u09b0\u09cd\u09a6\u09c7\u09b6\u09a8\u09be\u0993 \u09aa\u09cd\u09b0\u09b6\u09cd\u09a8\u099f\u09bf\u0987 \u09ad\u09be\u09b2\u09cb\u09ad\u09be\u09ac\u09c7 \u09aa\u09a1\u09bc\u09c7 \u09aa\u09b0\u09ac\u09b0\u09cd\u09a4\u09c0\u09a4\u09c7 \u09b8\u09aa\u09cd\u09a4\u09ae \u09b6\u09cd\u09b0\u09c7\u09a3\u09c0\u09b0 \u0997\u09a3\u09bf\u09a4 \u09ac\u09bf\u09b7\u09af\u09bc\u09c7\u09b0 13 \u09a4\u09ae \u09b8\u09aa\u09cd\u09a4\u09be\u09b9\u09c7\u09b0 \u098f\u09b8\u09be\u0987\u09a8\u09ae\u09c7\u09a8\u09cd\u099f \u09b8\u09ae\u09be\u09a7\u09be\u09a8 \u0995\u09b0\u09be\u09b0 \u0995\u09be\u09b0\u09cd\u09af\u0995\u09cd\u09b0\u09ae \u0986\u09b0\u09ae\u09cd\u09ad \u0995\u09b0\u09ac\u0964<\/p>\n<h2 id=\"h-\" class=\"has-text-align-center\" style=\"text-align: center;\"><span id=\"i\">\u09ed\u09ae \u09b6\u09cd\u09b0\u09c7\u09a3\u09bf \u0997\u09a3\u09bf\u09a4 \u09e7\u09e9 \u09a4\u09ae \u09b8\u09aa\u09cd\u09a4\u09be\u09b9\u09c7\u09b0 \u0985\u09cd\u09af\u09be\u09b8\u09be\u0987\u09a8\u09ae\u09c7\u09a8\u09cd\u099f<\/span><\/h2>\n<p class=\"has-text-align-center\" style=\"text-align: justify;\">\u09aa\u09cd\u09b0\u09a5\u09ae\u09c7 \u09a4\u09cb\u09ae\u09b0\u09be \u09e7\u09e9 \u09a4\u09ae \u09b8\u09aa\u09cd\u09a4\u09be\u09b9\u09c7 \u09b8\u09aa\u09cd\u09a4\u09ae \u09b6\u09cd\u09b0\u09c7\u09a3\u09bf\u09b0 \u09b6\u09bf\u0995\u09cd\u09b7\u09be\u09b0\u09cd\u09a5\u09c0\u09a6\u09c7\u09b0 \u0997\u09a3\u09bf\u09a4 \u09ac\u09bf\u09b7\u09af\u09bc\u09c7\u09b0 \u09a4\u09c3\u09a4\u09c0\u09af\u09bc \u0985\u09cd\u09af\u09be\u09b8\u09be\u0987\u09a8\u09ae\u09c7\u09a8\u09cd\u099f \u098f\u09b0 \u09aa\u09cd\u09b0\u09b6\u09cd\u09a8 \u0997\u09c1\u09b2\u09cb \u09a8\u09bf\u099a\u09c7\u09b0 \u099b\u09ac\u09bf\u09a4\u09c7 \u09ad\u09be\u09b2\u09ad\u09be\u09ac\u09c7 \u09a6\u09c7\u0996\u09c7 \u09a8\u09be\u0993 \u098f\u09ac\u0982 \u0985\u09cd\u09af\u09be\u09b8\u09be\u0987\u09a8\u09ae\u09c7\u09a8\u09cd\u099f \u09b2\u09c7\u0996\u09be\u09b0 \u09a8\u09bf\u09b0\u09cd\u09a6\u09c7\u09b6\u09a8\u09be \u09b8\u09ae\u09c2\u09b9 \u09aa\u09a1\u09bc\u09c7 \u09a8\u09be\u0993\u0964<\/p>\n<p><img decoding=\"async\" class=\"overflowingHorizontalOnly\" src=\"https:\/\/i.imgur.com\/QR5QXp7.jpg\" alt=\"https:\/\/i.imgur.com\/QR5QXp7.jpg\" \/><\/p>\n<figure class=\"wp-block-image\" style=\"text-align: justify;\"><\/figure>\n<p><strong>\u0985\u09cd\u09af\u09be\u09b8\u09be\u0987\u09a8\u09ae\u09c7\u09a8\u09cd\u099f:<\/strong><\/p>\n<p style=\"text-align: justify;\">\u09e8. A = a2 \u2013 a + 1, B = a2 + \u09e6 + 1 \u098f\u09ac\u0982 C = a + a2 + 1 \u09b9\u09b2\u09c7 \u09a6\u09c7\u0996\u09be\u0993 \u09af\u09c7, BC \u2013 B2 \u2013 A = 0 \u09e9. 18\u00d73 + 15\u00d72 = x \u2013 2 \u098f\u09b0 \u09a6\u09cd\u09ac\u09bf\u09a4\u09c0\u09af\u09bc \u0993 \u09a4\u09c3\u09a4\u09c0\u09af\u09bc \u09aa\u09a6 \u09ac\u09a8\u09cd\u09a7\u09a8\u09c0\u09b0 \u0986\u0997\u09c7 (-) \u099a\u09bf\u09b9\u09cd\u09a8 \u09a6\u09bf\u09af\u09bc\u09c7 \u09aa\u09cd\u09b0\u09a5\u09ae \u09ac\u09a8\u09cd\u09a7\u09a8\u09c0\u09ad\u09c1\u0995\u09cd\u09a4 \u0995\u09b0 \u098f\u09ac\u0982 \u09aa\u09cd\u09b0\u09be\u09aa\u09cd\u09a4 \u09b0\u09be\u09b6\u09bf\u099f\u09bf\u0995\u09c7 (2x + 1) \u0993 (3x + 2) \u098f\u09b0 \u0997\u09c1\u09a3\u09ab\u09b2 \u09a6\u09cd\u09ac\u09be\u09b0\u09be \u09ad\u09be\u0997 \u0995\u09b0;<\/p>\n<p><strong>\u09a8\u09bf\u09b0\u09cd\u09a6\u09c7\u09b6\u09a8\u09be (\u09b8\u0982\u0995\u09c7\u09a4\/ \u09a7\u09be\u09aa\/\u09aa\u09b0\u09bf\u09a7\u09bf):<\/strong><\/p>\n<p style=\"text-align: justify;\">\u09e7. \u09b6\u09bf\u0995\u09cd\u09b7\u09be\u09b0\u09cd\u09a5\u09c0\u09b0\u09be \u09ac\u09c0\u099c\u0997\u09a3\u09bf\u09a4\u09c0\u09af\u09bc \u09b0\u09be\u09b6\u09bf\u09b0 \u0997\u09c1\u09a3 \u0995\u09b0\u09be\u09b0 \u099c\u09a8\u09cd\u09af \u0997\u09c1\u09a3\u09c7\u09b0 \u09ac\u09bf\u09a7\u09bf\u0997\u09c1\u09b2\u09be\u09c7 \u0989\u09a6\u09be\u09b9\u09b0\u09a3\u09b8\u09b9 \u0989\u09b2\u09cd\u09b2\u09c7\u0996 \u0995\u09b0\u09ac\u09c7;<\/p>\n<p style=\"text-align: justify;\">\u09e8. \u09ac\u09be\u09ae\u09aa\u0995\u09cd\u09b7\u09c7\u09b0 \u09b0\u09be\u09b6\u09bf\u099f\u09bf\u0995\u09c7 \u09b8\u09b0\u09b2\u09c0\u0995\u09b0\u09a3 \u0995\u09b0\u09c7 A, B \u0993 C \u098f\u09b0 \u09ae\u09be\u09a8 \u09ac\u09b8\u09bf\u09af\u09bc\u09c7 \u09b8\u09a0\u09bf\u0995 \u09aa\u09cd\u09b0\u0995\u09cd\u09b0\u09bf\u09af\u09bc\u09be\u09af\u09bc \u09b8\u09b0\u09b2\u09c0\u0995\u09b0\u09a3 \u0995\u09b0\u09c7 \u09b8\u09ae\u09c0\u0995\u09b0\u09a3\u09c7\u09b0 \u09b8\u09a4\u09cd\u09af\u09a4\u09be \u09af\u09be\u099a\u09be\u0987 \u0995\u09b0\u09ac\u09c7;<\/p>\n<p style=\"text-align: justify;\">\u09e9. \u09b8\u09a0\u09bf\u0995 \u09aa\u09cd\u09b0\u0995\u09cd\u09b0\u09bf\u09af\u09bc\u09be\u09af\u09bc \u09a6\u09cd\u09ac\u09bf\u09a4\u09c0\u09af\u09bc \u0993 \u09a4\u09c3\u09a4\u09c0\u09af\u09bc \u09aa\u09a6 \u09ac\u09a8\u09cd\u09a7\u09a8\u09c0\u09ad\u09c1\u0995\u09cd\u09a4 \u0995\u09b0\u09ac\u09c7 \u098f\u09ac\u0982 \u09aa\u09cd\u09b0\u09be\u09aa\u09cd\u09a4 \u09b0\u09be\u09b6\u09bf\u099f\u09bf\u0995\u09c7 \u09aa\u09cd\u09b0\u09a6\u09a4\u09cd\u09a4 \u09b0\u09be\u09b6\u09bf \u09a6\u09c1\u0987\u099f\u09bf\u09b0 \u0997\u09c1\u09a3\u09ab\u09b2 \u09a6\u09cd\u09ac\u09be\u09b0\u09be \u09ad\u09be\u0997 \u0995\u09b0\u09ac\u09c7;<\/p>\n<h3 class=\"has-text-align-center has-background\" style=\"background-color: #e3f4fe; text-align: center;\"><span id=\"i-2\"><strong>\u09b8\u09aa\u09cd\u09a4\u09ae \u09b6\u09cd\u09b0\u09c7\u09a3\u09bf \u0997\u09a3\u09bf\u09a4 \u09e7\u09e9 \u09a4\u09ae \u09b8\u09aa\u09cd\u09a4\u09be\u09b9\u09c7\u09b0 \u0985\u09cd\u09af\u09be\u09b8\u09be\u0987\u09a8\u09ae\u09c7\u09a8\u09cd\u099f \u09b8\u09ae\u09be\u09a7\u09be\u09a8<\/strong><\/span><\/h3>\n<p style=\"text-align: justify;\">\u0995\u09b0\u09cd\u09a4\u09c3\u09aa\u0995\u09cd\u09b7\u09c7\u09b0 \u09aa\u09cd\u09b0\u09a6\u09a4\u09cd\u09a4 \u09a8\u09bf\u09b0\u09cd\u09a6\u09c7\u09b6\u09a8\u09be \u09b8\u09ae\u09c2\u09b9 \u098f\u09ac\u0982 \u0985\u09cd\u09af\u09be\u09b8\u09be\u0987\u09a8\u09ae\u09c7\u09a8\u09cd\u099f \u09ae\u09c2\u09b2\u09cd\u09af\u09be\u09af\u09bc\u09a8 \u09a8\u09bf\u09b0\u09cd\u09a6\u09c7\u09b6\u09a8\u09be\u09b8\u09ae\u09c2\u09b9 \u09af\u09a5\u09be\u09af\u09a5\u09ad\u09be\u09ac\u09c7 \u0985\u09a8\u09c1\u09b8\u09b0\u09a3 \u0995\u09b0\u09c7 \u09b8\u09aa\u09cd\u09a4\u09ae \u09b6\u09cd\u09b0\u09c7\u09a3\u09c0\u09b0 \u09b6\u09bf\u0995\u09cd\u09b7\u09be\u09b0\u09cd\u09a5\u09c0 \u09ac\u09a8\u09cd\u09a7\u09c1\u09a6\u09c7\u09b0 \u099c\u09a8\u09cd\u09af 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