Question

prove tan2 beta = cos2alpha - sin2alpha if tan2alpha = cos^2beta - sin^2beta

Answer 1

Heyy mate ❤✌✌❤

Here's your Answer...

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Please avoid the cut sign.

Answer 2

Answer:

Tan²alpha=cos²beta-sin²beta.

Step-by-step explanation:

I see all the people using the cos2alpha formula while it's much simpler by using componendo dividendo.