2sin^2A = 3(1-cosA) what is the value of A
Answers
Answered by
2
Answer:
60°
Step-by-step explanation:
2sin^2A = 3(1-cosA)
2( 1 - cos^2A) = 3(1-cosA)
2(1- cosA)(1+cosA) = 3(1-cosA)
1 + cosA = 3/2 => cosA = 1/2
cosA = cos 60° => A = 60°
Similar questions
Computer Science,
4 months ago
English,
4 months ago
Biology,
9 months ago
Social Sciences,
1 year ago