Question

Find value of x if 1/2^1990 -1/2^1991=2x

Answer 1

Hey.

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Thanks.

Answer 2

Answer:

(1/2) ^1990 - (1/2)^1991=2x

Find 'x'

= (1/2)^1990 - (1/2)^1990 + (1/2)^1=2x

=(1/2)^1=2x

Compairing

= (1/2)=x

so clearly the answer is

x=1/2

hope It helped