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A=5,d=3,an=50 . find n=_ |
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Answer» An=50 a+(n-1)d=50 5+(n-1)3=50 3n-3=50-5 3n=50+3-5 3n=48 n=48/3 n=16 sn=n/2 (2a+n Step-by-step EXPLANATION: 【mark as BRAINLIEST answer.】 |
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