62. sinα=0,8 ga teng. sin2α ni hisoblang.

\(\cos\alpha=\sqrt{1-0.8^2}=0.6\). Demak, \(\sin2\alpha=2\sin\alpha\cos\alpha=2\cdot0.8\cdot0.6=0.96\).

Javob: 0,96 (C).