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Find the general solution of the equation 2cos(3x)-1=0. Hence find the solutions for...
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High School Teacher
We wish to slove the problem for x
`x=(2/3)npi+-pi/9` , n is an integer.
It is general solution of the given problem.
`x=(7pi)/9 or (5pi)/9`
`x=(13pi)/9 or (11pi)/9` ,it is not in the given interval `(-pi,pi)`
Posted by aruv on June 23, 2013 at 6:42 AM (Answer #1)
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