plz anyone explain me that step.. How we got that answer
Answers!
Hello Aditi
Since everything is multiplied, we rearrange the terms.
So, in (2 cos 4x cos 2x) (2 sin 4x sin 2x)
we put sin 4x next to cos 4x and cos 2x next to sin 2x
So, it becomes
(2 sin 4x cos 4x ) (2 sin 2x cos 2x)
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Answer the question...
Hello Aditi
Since everything is multiplied, we rearrange the terms.
So, in (2 cos 4x cos 2x) (2 sin 4x sin 2x)
we put sin 4x next to cos 4x and cos 2x next to sin 2x
So, it becomes
(2 sin 4x cos 4x ) (2 sin 2x cos 2x)
Comment