(Solved): Find sin2x,cos2x, and tan2x if tanx=3 and x terminates in quadrant III. sin2x= Rewrite cos(2cos ...

Find $\sin 2x,\cos 2x$, and $\tan 2x$ if $\tan x=3$ and $x$ terminates in quadrant III. $\sin 2x=$ Rewrite $\cos \left(2{\cos }^{?1}w\right)$ as an algebraic expression in $w$. Suppose that $\sec ?=?\frac{13}{12}$ and $90^{?}<?<180^{?}$. Find the exact values of $\sin \frac{?}{2}$ and $\tan \frac{?}{2}$. Consider a triangle $ABC$ like the one below. Suppose that $c=28,a=70$, and $C=122^{?}$. (The figure is not drawn to scale.) 50 ive the triangle. Carry your intermediate computations to at least four decimal places, and round your answers to the nearest tenth. If no such triangle exists, enter "No solution, "If there is more than one solution, use the button labeled "or".