Advertisements
Advertisements
Question
Evaluate: `(sin 80°)/(cos 10°)`+ sin 59° sec 31°
Sum
Advertisements
Solution
`(sin 80°)/(cos 10°)`+ sin 59° sec 31°
= `sin(90° - 10°)/(cos 10°)` + sin (90° - 31°)sec 31°
= `(cos 10°)/(cos 10°) + (cos 31°)/(cos 31°)`
= 1 + 1
= 2
shaalaa.com
Is there an error in this question or solution?
