If tan (3x) = 5 tan (x), what is the value of sin (x)? Submitted by Jhun Vert on Fri, 04/21/2017 - 08:56 If tan (3x) = 5 tan (x), what is the value of sin (x)? Read more about If tan (3x) = 5 tan (x), what is the value of sin (x)?2 commentsLog in or register to post comments
proving: $\arccos x = \dfrac{\pi}{2} - \arcsin x$ Submitted by Jose Jesus Jos… on Wed, 02/03/2016 - 23:58 arc cos x = π/2 - arc sin x Read more about proving: $\arccos x = \dfrac{\pi}{2} - \arcsin x$ 1 commentLog in or register to post comments