Question

plz answer this question ​

Answer 1

Answer:

As for finding inverse we have to check that function should be one one and onto if it then we interchange x with y

In this question by interchange x and y

X=5y-2

So y=(x+2)/5...... i

For f^-1(7)=9/5 (put x=7 in i eqn)

For f(x) =0

5x-2=0

X=2/5

Answer 2

Answer:

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