Maths-

General

Easy

Question

# 16 sin

- [-1,1]
- []
- []
- []

Hint:

### In this question, we have to find the range of 8 sin x.cos x.cos 2x.cos 4x.cos 8x. For that first we will simplify the trigonometric function and later as we know range of sin y and cos y is [-1,1], so, using this we can find the range of the given function.

## The correct answer is: [-1,1]

### f(x) = 8 sin x.co x.cos 2x.cos 4x.cos 8x

=4sin 2x.cos 4x.cos 8x

=2sin 8x.cos 8x

=sin 16x

So, range is [-1, 1].

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