If 2-m×12m=14, then 114(4m)1/2+15m-1 is equal to(a) 12(b) 2 (c) 4(d)

1.	If 2-m×12m=14, then 114(4m)1/2+15m-1 is equal to(a) 12(b) 2 (c) 4(d) -14
Answer» If $2^{- m} \times \frac{1}{2^{m}} = \frac{1}{4},$ then $\frac{1}{14} \{(4^{m})^{1 / 2} + {(\frac{1}{5^{m}})}^{- 1}\}$ is equal to (a) $\frac{1}{2}$ (b) 2 (c) 4 (d) $- \frac{1}{4}$

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