Carter M.

asked • 03/27/17

1/1-cos^2 theta = 1 + cot^2 theta

Verify the Identity. 

Cristina S.

do you mean 1/(1-cos^2 theta)= 1 + cot^2 theta?

Is not the same thing!

1/(1-cos^2 θ)=1+(cos^2 θ)/sin^2 θ 
we know that 1-cos^2 θ = sin^2 θ  Substitute this above and bring the right side of the equation to the common denominator sin^2 θ

1/sin ^2 θ = ( sin^2 θ+cos^2 θ)/sin^2 θ

Do you see it now?


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