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Mathematics, 29.03.2021 23:40 erock5528

The coefficient of the second term in the expansion of (1 + 2x)^n in ascending powers of x is 40. Find the value of n. please help me pretty please, will mark brainliest​

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The coefficient of the second term in the expansion of (1 + 2x)^n in ascending powers of x is 40. Fi...
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