FunctionHard
Question
The range of the function f(x) = sin 
is -
is -Options
A.[-1 , 1]
B.(- 1, 1)
C.[-1, 1)
D.cannot be determined
Solution
f(x) = sin 
f(x) will be defined if
> 0 & 4 - x2 > 0
⇒ -2 < x < 1 & -∞ < log
< ∞
- 1 ≤ sin
< 1
so range of f (x) is [-1, 1]
f(x) will be defined if
> 0 & 4 - x2 > 0⇒ -2 < x < 1 & -∞ < log
< ∞- 1 ≤ sin
< 1so range of f (x) is [-1, 1]
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