The Student Room Group
Reply 1
amazinstudychic
how to make cosec θ - sin θ = cos θcot θ
i made sin θ = cos θ/tan θ and tried to work it out using this method.
however i dint get the right answer. a little help please


Use that cosecθ=1sinθcosec\theta=\frac{1}{sin\theta}
take common denominator and use the at he numerator
the identities of 1sin2θ=cos2θ1-sin^2\theta=cos^2\theta
after that cosθsinθ=cotθ\frac{cos\theta}{sin\theta}=cot{\theta}

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