Advertisements
Advertisements
Question
If a = sin 175°+ cos 175°, then ______.
Options
a > 0
a < 0
a = 0
a = 1
MCQ
Fill in the Blanks
Solution
If a = sin 175°+ cos 175°, then a < 0.
Explanation:
We have,
a = sin 175°+ cos 175°
⇒ a = sin (180° - 5°) + cos (180° - 5°)
= sin 5° - cos 5°
Since, cos 5° > sin 5°
∴ a < 0
shaalaa.com
Trigonometric Functions of Allied Angels
Is there an error in this question or solution?
