If tan theta - Cot theta = a Cos theta + Sin theta = b show that (a^2+4)(b^2-1)^2=4 #vikashtaunk

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If tan theta - Cot theta = a , Cos theta + Sin theta = b
show that (a^2+4)(b^2-1)^2 = 4
#vikashtaunk
Thank you so much.
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a Good type explantion
Thankyou for this video 👍👍👍🤗🤗🤗🤗🤗🤗

satvirverma