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The value of cos1 cos2 cos3 cos177 cos178 cos179 is

This question belongs to Arithmetic Ability Trigonometry
Trigonometry
?

The value of cos1° cos2° cos3° ............. cos177° cos178° cos179° is?

Answer & Solution
Correct Answer: Option A
cos1° cos2° cos3° ............. cos177° cos178° cos179°
= cos90°
= 0[0 will make whole series 0]
= 0
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