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CBSE Class 11-science Answered

<div>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&nbsp; &nbsp;x&nbsp; is ..? to calculate the answer.</div>
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
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