SOLUTION: If sin(x+30)=1/2 (0≤x≤360), then x is equal to? My attempt- sin(x+30)=1/2 sin(angle)=1/2 shift sin 1/2=30 x+30=30 x=0 so x=0, 180, 360 this is a multi

Algebra ->  Trigonometry-basics -> SOLUTION: If sin(x+30)=1/2 (0≤x≤360), then x is equal to? My attempt- sin(x+30)=1/2 sin(angle)=1/2 shift sin 1/2=30 x+30=30 x=0 so x=0, 180, 360 this is a multi      Log On


   

Question 360670: If sin(x+30)=1/2 (0≤x≤360), then x is equal to?
My attempt-
sin(x+30)=1/2
sin(angle)=1/2
shift sin 1/2=30
x+30=30
x=0
so x=0, 180, 360
this is a multiple choice question and the answers are-(A) 0,120 OR 360. (B) 0 OR 120 (C) 30 OR 150 (D) 120 OR 360
Thanks for any help in advance
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
If sin(x+30)=1/2 (0≤x≤360), then x is equal to?
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If sin(x+30) = 1/2, x+30 must be 30, or 150, or 390
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If x+30 = 30, x = 0
If x+30 = 150, x = 120
If x+30 = 390, x = 360
Ans: A
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Cheers,
Stan H.