Home
SELF STUDY
BrowsePracticeTestsPlaylistDoubts & solutionsFree live classesOther courses

Compound Angles

Quick practice

Question 1 of 5

Find the value of the equation \cos 55^{\circ}+\cos 65^{\circ}+\cos 175^{\circ}  .

A

1

B

3

C

2

D

0

Get unlimited practice with Class 11th Hindi Medium subscription

pick

Boost your performance with adaptive practice tests

pick

Practice every concept in the syllabus

pick

Compare your speed and accuracy with your peers

pick

Download the app and practice on the go