JEE Main 2019 Mathematics question
The value of sin 10° sin 30° sin 50° sin 70° is:
Answer: (A)
Solution
sin 10° sin 50° sin 70° = sin 30°/4 = 1/8; times 1/2 = 1/16.
The value of sin 10° sin 30° sin 50° sin 70° is:
sin 10° sin 50° sin 70° = sin 30°/4 = 1/8; times 1/2 = 1/16.