Question

Ajutor!!!!!!
f:R->R f(x)=2X+9
g:R->R g(x)=-x-3
(fog)(-1)
(fog)(-2)
(fog)(1 supra 2)
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Answer 1

(fog)(-1)=(f(g(-1))=f(-2)=-4+9=5

g(-1)=1_3=-2

(fog)(-2)=(f(g(-2))=f(-1)=-2+9=7

g(-2)=2-3=-1

(fog)(1/2)=(f(g(1/2))=f(-7/2)=-7+9=2

g(1/2)=-1/2-3=-7/2

Answer 2

Explicație pas cu pas:

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