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find the angle x
if its known that:
sin(x/2) = 1/2
tan(x)=sqrt(3)
0<=x<=360
Pyrrhus
Oct12-04, 01:24 PM
why don't you simply do arcsine and arctan?
because the whole point of the question is using trigonometric identities to solve it (believe me i would be happy to do the arctan and get it over with :smile: )
because the whole point of the question is using trigonometric identities to solve it (believe me i would be happy to do the arctan and get it over with :smile: )
You might discover something interesting about the problem though. (It's also worth noting that that there are special angles involved.)
i tried playing around with it
sin(x/2) = 1/2
tan(x)=sqrt(3)
i got
tan(x) = sin(x) / cos(x) = sqrt(3)
sin^2(x) / cos^2(x) = 3
but that didn't really lead me anywhere
i thought of ways to convert sin(x/2) to sin(x) with no luck
find the angle x
if its known that:
sin(x/2) = 1/2
tan(x)=sqrt(3)
0<=x<=360
If you don't want to use the inverse trig functions directly then you may want to ponder the equilateral triangle!
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