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I need help with proving identities.. trigonometry.. thanks!

0 votes
[(sinθ)/(1+cosθ)] + [(1+cosθ)/(sinθ)] = 2cscθ
asked Feb 26, 2013 in TRIGONOMETRY by rockstar Apprentice

1 Answer

+1 vote

The trigonometric equation is image.

Left hand side identity : image

image

image

image

Pythagoras identity : sin2 θ + cos2 θ = 1.

image

image

image

image

image

Reciprocal identity : csc (θ) = 1/sin (θ).

image

= Right hand side identity.

answered Jul 30, 2014 by lilly Expert

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