The value of $c o s 1^{\circ} c o s 2^{\circ} c o s 3^{\circ} . . . . c o s 179^{\circ}$ is

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

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Solution

The correct option is B
0

Given expression, $c o s 1^{\circ} c o s 2^{\circ} c o s 3^{\circ} . . . c o s 179^{\circ}$

$= c o s 1^{\circ} c o s 2^{\circ} . . . c o s 90^{\circ} . . . c o s 179^{\circ}$

$[∵ c o s 90^{\circ} = 0]$

=0

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Similar questions

WruWr the value of cos1° cos2° cos 3° ...cos 179° cos 180°

Write the value of cos 1° cos 2° cos ³° ...cos 179° cos 180°

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

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

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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 179^{\circ}

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