Q29 of 48 Page 84

Prove the following with the help of identities:

If sec θ + tan θ = P, then prove that

Taking L.H.S we get,


⇒


Using the identity: (a + b)2 = a2 + b2 + 2.a.b


And sec2 θ – tan2 θ = 1


⇒


⇒


⇒


⇒


⇒ sin θ = R.H.S


Hence, proved.


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