MCQ
$\frac{1-2\left[\cos 60^{\circ}-\cos 80^{\circ}\right]}{2 \sin 10^{\circ}}=$
  • A
    2
  • B
    $\frac{3}{2}$
  • C
    $\frac{1}{2}$
  • 1

Answer

Correct option: D.
1
D

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