Question

Dada a função f(x)= 4x² -1, calcule
A) f(2)=
B) f(-1)=
C) f(√2)=
D) f (3/2)=
E) f (-√3)=
J) f (0,5)

Answer 1

Resposta:

Explicação passo-a-passo:

Dada a função f(x)= 4x² -1, calcule

A) f(2)= 4.2^2 -1 => 4.4-1 => 16-1 = 15

B) f(-1)=4.(-1)^2 -1 => 4.1-1 = 3

C) f(√2)=4.(2^1/2)^2-1=>4.2-1= 7

D) f (3/2)=4.(3/2)^2-1=>4.9/4-1=36/4-1=8

E) f(-raiaz de 3)= 4.(-3^1/2)^2-1=>4.3-1=11

J) f(0,5)=4.(1/2)^2-1=>4.1/4-1=>4/4-1=0

Answer 2

Resposta:

Explicação passo-a-passo:

Dada a função f(x)= 4x² -1, calcule

A) f(2)= 4.2^2 -1 => 4.4-1 => 16-1 = 15

B) f(-1)=4.(-1)^2 -1 => 4.1-1 = 3

C) f(√2)=4.(2^1/2)^2-1=>4.2-1= 7

D) f (3/2)=4.(3/2)^2-1=>4.9/4-1=36/4-1=8

E) f(-raiaz de 3)= 4.(-3^1/2)^2-1=>4.3-1=11

J) f(0,5)=4.(1/2)^2-1=>4.1/4-1=>4/4-1=0

Explicação passo-a-passo: