Question: i. Prove that cot + tan = 2 cosec 2. ii. Hence show that czt fr cosec 20 de = In In 3.

i. Prove that cot θ + tan θ = 2 cosec 2θ.

ii. Hence show that

czt fr cosec 20 de = In In 3.

czt fr cosec 20 de = In In 3.

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