Q26 of 48 Page 84

Prove the following with the help of identities:

Taking the L.H.S we get,



⇒


⇒


⇒


⇒ (taking the L.C.M)


⇒ (using the identity: a2 – b2 = (a + b)(a – b))


⇒ = (cos A + sin A)


= R.H.S


Hence, proved.


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