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Find the values of cos theta and tan the...

Find the values of `cos theta` and `tan theta` when `sin theta =-3/5` and `pi < theta < (3pi)/2`

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`sin theta=frac{-3}{5}`
We know, - `Sin^{2} A+Cos^{2} A=1`. ` cos^2 theta+cos ^{2} theta=1`. Putting the value of `sin theta`. ` cos^2 theta+(frac{-3}{5})^{2}=1` ...
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