Any help would be appreciated for these problems. Thanks in advance
sec x/2 = cos x/2
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Originally Posted by ChargersFan84 2sin(squared)x-cosx=1 You mean 2sin²x-cosx=1 ?
In this case just change sin²x by 1-cos²x and solve the second degree equation in cosx
Originally Posted by ChargersFan84
2)sec x/2 = cos x/2
For what value of x does has or as its value?
Can you proceed further?
4)Try to do this yourself as number 3 or else i will give further hints...
Last edited by great_math; November 27th 2008 at 08:00 PM.
Just a small mistake in 3)
2 cos²x + cos x - 1 = 0
Awesome. Thanks a bunch! I can take it from there.
Originally Posted by running-gag Just a small mistake in 3)
2 cos²x + cos x - 1 = 0 Sorry...
I was asleep at that time..
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