Question

Given that x^a= 1/x^b, what is the value of 2a+2b?

Answer 1

given that x^a=1/x^b

so, x^a=x^-b

as the base the same

that is,

equating the powers

a=-b

so now,

we have to find 2a+2b

that is, 2(-b) + 2b { as a=-b }

so -2b+ 2b

so they both will get cancelled and the answer will be 0

answer 0