ro8ckTat5ylee ro8ckTat5ylee

05-09-2016
Mathematics

contestada

Find all solutions
2cos(theta)+1=0
write in radians in terms of pi.

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Hussain514 Hussain514

14-09-2016

As we know
cos theta-1= 0
cos theta = 1
Now Look at a graph of the cosine function
, and you will observe that cos theta = 1
at the points X = 0, and X = 2pi
hope it helps

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