Question

b) Se 5√a= 2, qual e o valor de a? c) Se 7√a= 1 qual e o valor de a ?

Answer 1

b) 5Va = 2

Va = 2/5

(Va)^2 = (2/5)^2

a = 4/25 ←←

c) 7Va = 1

Va = 1/7

(Va)^2 = (1/7)^2

a = 1/49 ←←