If \( \sin\left(\frac{\pi}{4}\cot\theta\right) = \cos\left(\frac{\pi}{4}\tan\theta\right) \), then the general solution of \( \theta \) is:
If \(1+ (√1+x) tanx = 1+ (√1-x)\) then \(sin4x\) is ?
Find cos248o - sin212o , if sin18o = (√5 - 1)/4
Find ∫(cos√x) dx=?