If t r is the r th term in the expansion of ( 2 x + 4 − x ) 8 and if t 3 = 7 t 2 then x =

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If $t_r$ is the $r^{\text {th }}$ term in the expansion of $\left(2^x+4^{-x}\right)^8$ and if $t_3=7 t_2$ then $x=$

MathematicsBinomial TheoremAP EAMCETAP EAMCET 2017 (26 Apr Shift 2)

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Solution:

1455 Upvotes Verified Answer

The correct answer is: $-\frac{1}{3}$

No solution. Refer to answer key.

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