Find $\sin 2 x$ $\cos 2 x$ And $\tan 2 x$ , Given That

Q92: Write <span class="ql-formula" data-value="\cos (

Q93: Use addition or subtraction formulas to

Q94: Solve the given equation. <span

Q95: Use a double-angle formula or a

Q96: Solve the given equation. <span

Q98: Solve the given equation. <span

Q99: Prove <span class="ql-formula" data-value="\frac {

Q100: Solve the given equation. <span

Q101: Use a double-angle formula or a

Q102: Solve the given equation. <span