Cos x 5
Asked by maham237 @ in Mathematics viewed by 220 People
SOLVE. 3 sin x + 5 cos x = 0
Answered by maham237 @
3 sin x + 5 cos x = 0
3 sin x = - 5 cos x /: cos x ( divide both sides by cos x )
3 sin x / cos x = - 5
3 tan x = - 5
tan x = -5/3
x = arc tan (-5/3)
x ≈ - 59.036°
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