If in the expansion of ( 2^x + 1/(4^x))^n, T3/T2 = 7 and the sum of the coefficients of 2nd and 3rd terms is 36, then the value of x is ..? to calculate the answer.

CBSE Class 11-science Answered

If in the expansion of ( 2^x + 1/(4^x))^n, T3/T2 = 7 and the sum of the coefficients of 2nd and 3rd terms is 36, then the value of x is ..? to calculate the answer.

Asked by sudhanshubhushanroy | 06 Nov, 2017, 08:54: PM

Expert Answer

begin mathsize 16px style Here comma space you space have space to space find space out space second space and space third space term space using space straight C presuperscript straight n subscript straight r open parentheses straight x close parentheses to the power of straight n minus straight r end exponent open parentheses straight y close parentheses to the power of straight r. Also comma straight T subscript 3 over straight T subscript 2 equals 7 space and space sum space of space coefficients space of space second space and space third space equals space 36 Find space straight x. end style

Answered by Sneha shidid | 11 Dec, 2017, 02:10: PM

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CBSE Class 11-science Answered

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CBSE Class 11-science Answered

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Binomial Theorem for Positive Index

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