Question

What is the answer of -4 cosx sin x =

Answer 1

Step-by-step explanation:

–4sinx cosx

=–2×2sinxcosx

=–2×sin2x

=–2sin2x

Answer 2

Answer:

⇒  - 2 sin 2 x

Step-by-step explanation:

Given :

-4 cos x sin x

Now taking - 2 common we get

- 2 ( 2 cos x sin x )

Rewrite as

- 2 ( 2 sin x cos x )

Now we know 2 sin x cos x = sin 2 x

So , - 2 ( 2 sin x cos x )

⇒  - 2 sin 2 x

Thus we get answer .