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If f:R rarr R and g:R rarr R are defined...

If `f:R rarr R` and `g:R rarr R` are defined by `f(x)=2x+3,g(x)=x^2+7` then the values of ,x for which `f[g(x)]=25` are

A

`+- 1`

B

`+- 2`

C

`+-3`

D

`+-4`

Text Solution

Verified by Experts

The correct Answer is:
B
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