rewrite over a common denominator: (1)/(1-sinθ)+(1)/(1+sinθ)
\[\frac{1}{1-\sin\theta}+\frac{1}{1+\sin\theta}\]
do you know the answer?
\[=\frac{1+\sin\theta+1-\sin\theta}{\left(1-\sin\theta\right)\left( 1+\sin\theta\right)}\]\[=\frac{2}{\left(1-\sin\theta\right)\left( 1+\sin\theta\right)}\]
\[=\frac{2}{1-\sin^2\theta}\]
you can see the answer now right? it's easy from here.
yes is it 2sec^2Theta?
yup
\[\frac{2}{\cos^2{\theta}}=2\sec^2{\theta}\]
sinθ/cosθ+cosθ/sinθ? complete the identity
not coin it. you haven't medalled me for either question I helped you with.
not doing*
how do i medal you im new to this?
thanks. also you are supposed to create a new question for each one! but I can help you here now anyways.
ok thank you so much
so multiplying to get a common denominator you have \[\frac{\sin^2x+\cos^2x}{\cos x\sin x}=\frac{1}{\cos x\sin x}=\csc x\sec x\]
you are the best
you could also use a double angle identity to get \[2\csc{(2\theta)}\]
not sure if you have learned those or not yet. anyways I gotta run. thanks for the metals!
oh okay thanks. I'll be needing more help in the future.
youll be getting more from me
there are lots of people willing to help. if you see me online you can tag me using @richyw
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