The value of cos 10° cos 30° cos 50° cos 70° cos 90° is:
Answer & explanation
Correct answer: option 3
We know,
cos 90° = 0
Therefore,
cos10°cos30°cos50°cos70°cos90° = 0
The value of cos 10° cos 30° cos 50° cos 70° cos 90° is:
Correct answer: option 3
We know,
cos 90° = 0
Therefore,
cos10°cos30°cos50°cos70°cos90° = 0