- #1
thomas49th
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Homework Statement
Solve for the interval 0 < x < pi/2
[tex]\sqrt{5}Cos(2x+0.464)[/tex]
Homework Equations
The Attempt at a Solution
Am i right in saying as cos oscillate between -1 and 1:
The maximum is sqrt(5) and occurs when (2x-0.464) = 1
Now i got 0.464/2 and (2pi - 0.463)/2
and the back of the book says 0.32 and 2.36
How do you solve equations like above :S
Thanks
yes my calculator is in radians.