Find Φ such that 2 cos Φ • sin Φ - cos Φ = 0 if 0°<_Φ<_90°.
Best Answer will be Marked as the BRANLIEST for sure.
Answers
Answered by
3
Answer:
30°
Step-by-step explanation:
Given: 2 cos Ф * sin Ф - cos Ф = 0
⇒ 2 cos Ф * sin Ф = cos Ф
⇒ 2 sin Ф = cos Ф/cos Ф
⇒ 2 sin Ф = 1
⇒ sin Ф = 1/2
⇒ sin Ф = sin 30°
⇒ Ф = 30°.
Hope it helps!
sauveerdixit:
Thanks bro. :)
Answered by
2
Answer:
30
Step-by-step explanation:
2 cos Ф * sin Ф - cos Ф = 0
2 cos Ф * sin Ф = cos Ф
2 sin Ф = cos Ф/cos Ф
2 sin Ф = 1
sin Ф = 1/2
sin Ф = sin 30°
Ф = 30°.
Similar questions
English,
7 months ago
Physics,
1 year ago
Business Studies,
1 year ago
English,
1 year ago
Math,
1 year ago