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In arthematic progression first two terms are -3,4 then 21 term is.. |
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Answer» ong>Answer: 21 term is 137 Step-by-step EXPLANATION: arithmetic progression is -3,4,...... a = -3 b = 4 d = b - a = 4 - (-3) = 4 + 3 = 7 so, a^21 = a + 20d = -3 + 20(7) = -3 + 140 = 137 |
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