SOLUTION: Not quite understanding what they are asking please help Use the equation to determine f(x)=0 f(x)=-3cos(pie x - pie/2)-2

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Question 516964: Not quite understanding what they are asking please help
Use the equation to determine f(x)=0
f(x)=-3cos(pie x - pie/2)-2

Answer by lwsshak3(11628) About Me  (Show Source):
You can put this solution on YOUR website!
Not quite understanding what they are asking please help
Use the equation to determine f(x)=0
f(x)=-3cos(pie x - pie/2)-2
**
-3cos(πx-π/2)-2=0
cos(πx-π/2)=-2/3
πx-π/2=2.30 radians
πx=2.30+π/2=3.87
x=3.87/π
x≈1.23