0000:00:00:00:00Start40Number 40ExplanationIf sin2x+cos2x=−16cosx+8sinx+cos2x\sin 2x + \cos 2x = -16 \cos x + 8 \sin x + \cos^2 xsin2x+cos2x=−16cosx+8sinx+cos2x with 0≤x≤π20 \leq x \leq \frac{\pi}{2}0≤x≤2π, then sin2x\sin 2xsin2x = ....45\frac{4}{5}5435\frac{3}{5}5325\frac{2}{5}5215\frac{1}{5}51000
40Number 40ExplanationIf sin2x+cos2x=−16cosx+8sinx+cos2x\sin 2x + \cos 2x = -16 \cos x + 8 \sin x + \cos^2 xsin2x+cos2x=−16cosx+8sinx+cos2x with 0≤x≤π20 \leq x \leq \frac{\pi}{2}0≤x≤2π, then sin2x\sin 2xsin2x = ....45\frac{4}{5}5435\frac{3}{5}5325\frac{2}{5}5215\frac{1}{5}51000
