Post a New Question
posted by Maria Friday, December 30, 2011 at 10:59pm.
I'm trying to verify the identity: (sin^2 x)/(2)= (secx-1)/(2secx)
I think you have a typo. As written, the equation does not hold. Try using x=pi/4. Check to see whether you need exponents on the secx terms.
More Related Questions