1.

Statement-I : If 0 lt alpha, beta lt pi/4, sin alpha =a/sqrt(1+a^(2)), cos beta = b/sqrt(1+b^(2)), then tan (alpha + beta) = (a+b)/(a-b) Statement-II: If tan(A + B)\m, tan(A-B) =n, then tan 2B =(m-n)/(m+n)

Answer»

Only I
Only II
Both I & II
Neither I nor II

Answer :D


Discussion

No Comment Found