Question

The value of: cosec 40° cos 50° + sin 50° sec 40° is ______.

विकल्प

• 1

• 2

• 3

• 0

Answer 1

The value of: cosec 40° cos 50° + sin 50° sec 40° is 2.

Explanation:

Using complementary angle conversions (csc 40° = sec 50° and cos 50° = sin 40°):

sec 50° cos 50° + sin 50° csc 50°

= 1 + 1

= 2