Question

Seja a função f: R->R*+, dada por f(x)=(1/4)^x. Determine:
a) f(-1/2)
b) f(1/2)

Answer 1

f ( x ) = (1/4)^x

a) f (-1/2) = (1/4)-¹/² = (4)¹/² = √4 = 2

b) f ( 1/2) = (1/4)¹/² = √1/4 = 1/2