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Question

Let f:RR, f(x)=3x+2
and g:RR, g(x)=6x+5
For the given functions, (gf1)(10)=


A
21
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B
29
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C
7
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D
83
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Solution

The correct option is A 21
f1(x)=x23
(gf1)(x)=6(x23)+5
(gf1)(x)=2x+1
(gf1)(10)=21

Mathematics

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