How much is Cot(a+b)×cot(a-b)=
Answers
Answered by
1
Answer:
cot^2a-cot^b
. Or
cot^2a-cot^2b
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Answered by
1
Step-by-step explanation:
cot^2(A)cot^2(B)-1/cot^(B)+cot^2(A)
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