Recently Active Trignometry Questions

Asked by krish1092 2cos9xcos7x=2cos5xcos3x and 2sin5xcos3x=2sin9xcos7x ...

Prove that 3(cot2θ+tan2θ)-8(cotθ+tanθ)+10≥0 ...

Q : A,B,C are 3 angles of a triangle. A=π/4 , tanB . tanC = p. find all possible values of p. my approach. B+C= 3π/4 so , tanB . tan(3π/4 - B) = p. tanB=x , x2 + x(1-p) + p =0 . for real roots. Δ≠...

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solve: 2sinx=|x| +a find a such that there is no real root! ...