Question

59. If f:R → R, g:R→R and h:R→ R is such that f(x) = x², g(x) = tanx and h(x) = log x then the value of [h.(g. f)]. If x=√π/2 will be:
A) 0 B) 1 C) -1 D) 10 E) -10​

Answer 1

Answer:

$a + b(c)$

A PLUS B IS C SQUARE

Answer 2

Answer:

ho(gof)}(x)=(hog){f(x)}=(hog)(x

2

)

=h{g(x

2

)}=h(tanx

2

)=log(tanx

2

).

∴{ho(gof)}

4

π

=log(tan

4

π

)=log1=0.