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Bishal shrestha
Answers (1)
Q.n : If x+y = 45 Then prove that :(cotx+1)(coty +1)/cotx.coty=2 we have x + y = 45 Now,multiplying by cot on both sides or,cot(x+y)=cot45 or,cotx.coty -1/cotx + coty =1 or,cotx.coty -1= cotx + coty or,cotx.coty =cotx + coty + 1 Adding cotx.coty on both
