SOLUTION: Find the approximate values of x, -360 <=x <= 360), in each trigonometric equation. A. -1=cos x b. 3=-cos3x+2 c.-1=sin0.5x+1 d. 1=sin0.5+1 e. -4=3sinx-2

Question 84062: Find the approximate values of x, -360 <=x <= 360), in each trigonometric equation.
A. -1=cos x
b. 3=-cos3x+2
c.-1=sin0.5x+1
d. 1=sin0.5+1
e. -4=3sinx-2
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
Find the approximate values of x, -360 <=x <= 360), in each trigonometric equation.
A. -1=cos x
x=180 degrees
-------------
b. 3=-cos3x+2
cos3x =1
3x = 0 degrees or 360 degrees or -360 degrees
x=0 or 120 or -120
---------------
c.-1=sin0.5x+1
sin0.5x = -2
No such sin value exists
---------------
d. 1=sin0.5x+1
sin0.5x = 0
0.5x = 0 or +-180 or +-360 or +-(-360)
x = 0 or +-360
---------------
e. -4=3sin(x-2)
-4/3 = sin(x-2)
No such sine value exists.
==========
Cheers,
Stan H.
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