Solution:
sin9θ - sinθ = 0
⇒ 2cos5θ - sin4θ = 0
⇒ [2sin4θ.cosθ - sin4θ = 0 ]
Either, sin4θ = 0
⇒ 4θ = nπ
⇒ θ = \(\frac{n\pi}4\)
Toolbox
-
Dictionary -
Calculator
Grade -11 (NEB) > Science Math
Trigonometry
General value of θ if sin9θ = sinθ
If the value of sin9θ = sinθ then what is the value of θ ?
A
\(\frac{n\pi}2\)
B
\(2n\pi\)
C
\(\frac{n\pi}3\)
D
\(\frac{n\pi}4\)
1 Answer
Tribhuvan University > Institute of Science and Technology > B.Sc. (CSIT)
Topics from Math
Popular Tags: 7 Days
Upcoming MCQs
Computer Fundamental Multiple Choice Questions Exam Free
- 2022-03-20 12:45
- 60 Mins
- 12 Enrolled
- 25 Full Marks
- 10 Pass Makrs
- 25 Questions