The value of cos 1° cos 2° cos 3° ...... cos 120° is _______.

Open in App

Solution

$\cos 1 ° \cos 2 ° \cos 3 ° . . . \cos 120 ° = \cos 1 ° \times \cos 2 ° \times \cos 3 ° \times . . . \times \cos 90 ° \times . . . \times \cos 120 ° = \cos 1 ° \times \cos 2 ° \times \cos 3 ° \times . . . \times 0 \times . . . \times \cos 120 ° (\cos 90 ° = 0) = 0$

The value of cos 1° cos 2° cos 3° ...... cos 120° is _0_.

Suggest Corrections

Similar questions

\cos 1 ° \cos 2 ° \cos 3 ° . . . \cos 179 °

\frac{1}{\sqrt{2}}

- 1

cos 1^{\circ} \cdot cos 2^{\circ} \cdot cos 3^{\circ} \dots cos 180^{\circ}

c o s 1^{\circ} \times c o s 2^{\circ} \times c o s 3^{\circ} \times . . . . . . . \times c o s 179^{\circ}

cos 1^{\circ} cos 2^{\circ} cos 3^{\circ} . . . . cos 90^{\circ}

Join BYJU'S Learning Program