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Mathematics 7 Online
OpenStudy (anonymous):

Prove this.

OpenStudy (anonymous):

\[\frac{ \sin \theta \sec \theta }{ \tan \theta +\cot \theta }=\sin ^{2}\]

OpenStudy (raden):

sinθsecθ = sinθ *1/cosθ = tanθ, right ?

OpenStudy (anonymous):

Yeah, sin/cos=tan

OpenStudy (raden):

so, for left side can be : (tanθ)/(tanθ+cotθ) multiply the fraction by tanθ/tanθ, then simplify it...

OpenStudy (anonymous):

The tan^2 on the top and bottom cancel, and the 1/cot is the same thing as tan, right? So how does tan=sin^2 ?

OpenStudy (raden):

it can be |dw:1355413521366:dw|

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