cos^2 x + 5sinx.cosx=3,
then, tan x =?
Answers
Answered by
2
Answer:cos^2x + 5sin(90-x)cosx = 3
cos^2x + 5cosx.cosx = 3
cos^2x + 5cos^2x = 3
6cos^2x = 3
cos^2x = 3/6
cos^2x = 1/2
cosx = √1/2
cosx = 1/√2
x = 30°
Similar questions
Physics,
3 months ago
Physics,
3 months ago
Social Sciences,
3 months ago
Biology,
8 months ago
Social Sciences,
8 months ago
English,
11 months ago
Hindi,
11 months ago
Chemistry,
11 months ago