Math, asked by Vedikaaaa, 1 year ago

sec^4 θ - cos^4θ = 1- 2 cos^2 θ
.
How do I prove the above?

Answers

Answered by MohammedAdil

please write in paper

Vedikaaaa: okay

Vedikaaaa: umm, how do i send a pic? im new at this

MohammedAdil: o sorry I can't help

Vedikaaaa: okay, uh- didnt you understand my ques? it's secant raised to four theta - cosecant raised to four theta = 1 - 2 × cosecant raised to 2 theta

Vedikaaaa: how do i prove it?

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sec^4 θ - cos^4θ = 1- 2 cos^2 θ.How do I prove the above?

Answers

sec^4 θ - cos^4θ = 1- 2 cos^2 θ
.
How do I prove the above?