Cos 4x = 1-8sinx.cos^2x
prove it
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Answered by
14
✳️Hi mate here is the answer ✳️
we know that,
Cos 2A= 1-2sin^2A
Sin 2A= 2 sinA.cosA
see above attachment ✔️
#_#_❤️❤️
Hope it helps you ☑️
Attachments:
Answered by
12
Hope it helps you ❤️
Attachments:
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