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Prove the following 1.((1-cos^(2)theta...

Prove the following `1.((1-cos^(2)theta)/sin^(2)theta) = 1`, `2. 1 - (cos^(2)theta/(*1+sintheta)) = sintheta`

Text Solution

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Here, we will use,
`cos^2theta+sin^2theta = 1`
1.) `L.H.S. = (1-cos^2theta)/sin^2theta`
`=(cos^2theta+sin^2theta - cos^2theta)/sin^2theta`
`=sin^2theta/sin^2theta`
`=1 = R.H.S.`
...
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