Q62 / 160 · AP EAMCET 2017 (26 Apr Shift 2) · Mathematics

$\cos 12^{\circ}+\cos 60^{\circ}+\cos 84^{\circ}+\cos 132^{\circ}+\cos 156^{\circ}=$

  • A
    $\frac{-1}{4}$
  • B
    $\frac{-1}{2}$
  • Correct answer
    C
    0
  • D
    $\frac{1}{4}$

Hence, the correct answer is option: 'C'.

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