Match each function with Its double-angle formula. (a) sin(2u) 1-2sin^2(u) 2sin(u)cos(u) (2tan(u))/(1-tan^2)(u) (b) cos(2u) 1-2sin^2(u) 2sin(u)cos(u) (2tan(u))/(1-tan^2)(u) (c) tan(2u) 1-2sin^2(u) 2sin(u)cos(u) (2tan(u))/(1-tan^2)(u)

Let's match each function with its corresponding double-angle formula:(a) - The correct double-angle formula for is .(b) - The correct double-angle formula for is .(c) - The correct double-angle formula for is sin(2u) 2sin(u)cos(u) cos(2u) 1-2sin^{2}(u) tan(2u) \frac {2tan(u)}{1-tan^{2}(u