Question

PROVE THE FOLLOWING IDENTITY

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▶▶ ( Sec + tan ) ( 1 - sin ) = cos

▶▶ Sec ^4 - tan ^4 = 1 + 2 tan ^2

▶▶ Tan ^ 2 - Sin ^ 2 = tan^2 sin^2

▶▶ ( 1 - cos ) ( 1 - sec ) = tan sin

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✔✔✔ Plz solve

Answer 1

The answer is explained in the attachment.


Hope this helps!

Answer 2

Hello friend

Good morning

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Your answer is given in the attachment

I hope it will help you a lot

Thanks

Have a nice day

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In 4 rth part there is some mistakes of sign
So i can not do this part.Ok