how do you simplify 2sin^2(x/2)?

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how do you simplify 2sin^2(x/2)?

Mathematics
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looks pretty simple as is to me :) what are ya going for?
2(1-cos^2(x/2)) = 2 - 2cos^2(x/2) doesnt seem to help..
i got that, but what do I do next? or is that not right

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Other answers:

it all depends on what your definition of "simplified" means... are we wanting only single exponents?
err...exponents of 1?
yes, just one term
one term it already is, but do you mean like sin(x/2) instead of sin^2(x/2)?
yes, i believe so
hmmmm...... we can play around with identites some and see what happens i spose... do you recall the formula for reducing an exponent?
nope, im so hopless haha
cos(2a) = cos^2 - sin^2 cos(2a)= 1 - 2sin^2(2a) cos(t) -1 ------- = sin^2(t) 2 try this one
2(cos(x/2) -1) ------------ = sin^2(x/2) 2
okay, hold on ne second while i work it out
.....2sin^2(x/2)
okay, that worked. i understand that, thanks!
that needs alittle fixing... cos(x)-1 -------- = sin^2(x/2) 2 thats what it should be before you put it in
cos(x) - 1 = 2sin^2(x/2)
ohh, okay, I see it now.
better? :)
yupp, thanks a lot!
to double check, throw in a number and see :)

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