prove each identity so L.S. = R.S.
1) sin x (divided by) 2 = 1-cosx(divided by)2 (right side of equation is all under square root sign)
Follow Math Help Forum on Facebook and Google+
have you tried using the trig identity, (cosx)^2 + (sinx)^2 = 1?
also is that (1-cosx)/2 or 1-cosx/2?
i dont think that identity applys to this one does it?
it is just the square root of 1-cos(theta) all over 2 = sin (theta) over 2
sin(theta) = 1-cos(theta) <- right side is all under a square root sign
hope that helps
yea i thats what i mean both sides are equal
View Tag Cloud