Question

cos 0° + sec 60° = ______.

विकल्प

• 2

• 3

• 1

• `1 1/2`

Answer 1

cos 0° + sec 60° = 3.

Explanation:

cos 0° = 1 because the cosine of zero is unity.

sec 60° = `1/cos 60° = 1/ (1/2) = 2`

1 + 2 = 3   ... [adding]

cos 0° + sec 60° = 3.