Cot^2(alpha)csc(alpha)+2cot(alpha)csc(alpha)-3csc(alpha)
1 answer:
Answer:
Step-by-step explanation:
cot²α csc α+2 cot α csc α-3 csc α
=csc α (cot²α+2cot α-3)
=csc α (cot² α+3cot α- cot α-3)
=csc α[cot α(cot α+3)-1(cot α+3)]
=csc α (cot α+3)(cot α-1)
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