CUET Preparation Today
CUET
General Test
Quantitative Reasoning
Trigonometry
The value of cos 10 ° cos 30° cos 50° cos 70° cos 90° is:
3
0
5
1
cos 10 ° cos 30° cos 50° cos 70° cos 90°
{ we know, cos 90° = 0 }
= cos 10° × cos 30° × cos 50° × cos 70° × 0
= 0
