ΔPQR is right angled at Q. If cos P = 3/5, then what is the value of cos R?

If Cos A + Cos² A = 1, then Sin² A + Sin⁴ A=?

One angle of a triangle is 55°. If the other two angles are in the ratio 9:16, find the angles?

Solve it θθθθ

If cos θ + sin θ =m, sec θ + cosec θ =n, what is m/n?

If θ then (tanθ+cosθ)=?

If tanx = cot(50+3x), then what is the value of x ?

If θ then θθθθ  is