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prove: 2sin^2(2θ) + cos4θ = 1

0 votes

i need all steps.

trigonometric-identities
solving-trigonometric-equations

asked Mar 10, 2014 in TRIGONOMETRY by futai Scholar

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1 Answer

0 votes

Given : .

Left hand side identity

We know that .

Like wise .

= Right hand side.

answered Apr 1, 2014 by lilly Expert
edited Apr 1, 2014 by lilly

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