wiz-icon
MyQuestionIcon
MyQuestionIcon
1
You visited us 1 times! Enjoying our articles? Unlock Full Access!
Question

For any acute angle θ,sin(π+θ)=, cos(π+θ)=.

A
sinθ
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
B
cosθ
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
C
cosθ
No worries! We‘ve got your back. Try BYJU‘S free classes today!
D
sinθ
No worries! We‘ve got your back. Try BYJU‘S free classes today!
Open in App
Solution

The correct option is B cosθ
Given an acute angle θ and we have to find the value of sin(π+θ) & cos(π+θ)
Now, π+θ corresponds to angle in the 3rd quadrant, where both sin & cos are negative.
Now, the situation can be represented as:

Thus, equating we get:
cos(π+θ)=cosθ
and sin(π+θ)=sinθ

flag
Suggest Corrections
thumbs-up
0
Join BYJU'S Learning Program
similar_icon
Related Videos
thumbnail
lock
Property 1
MATHEMATICS
Watch in App
Join BYJU'S Learning Program
CrossIcon