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Q. Match the following: (Que No. 23 &24)23. Section AI 11th term of an A.P. -10,-7.5, -5,...II 10th term of an A.P. 2, 7, 12,....Section BA. 60B. 15C. 47 |
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Answer» Answer: q.23 (i)a =-10 d = -7.5+10 = 2.5 a 11 = (-10) + (11-1)(2.5) (-10)+10(2.5) (-10)+25 a11 = 15 (ii) a=2 d = 7-2 = 5 a10 = 2+(10-1)5 2+45 = 47 |
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