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CBSE Class 12-science Answered

the value of cot 16 cot 44 + cot 44 cot 76 - cot 76cot 16 - 3 is
Asked by | 31 May, 2008, 09:18: PM
Expert Answer

cot(a) cot(b) -1 = cot(a+b)*( cot(a)+cot(b) )

cot(a) cot(b) +1 = cot(a-b)*( cot(b)-cot(a) )

using these two formulas u can easily get the answer.

which is 0

Answered by | 10 Aug, 2008, 04:43: AM
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