Is there any way to force Mathematica to not use double and half angle formulae etc. when simplifying Trigonometric expressions?
Simplify[Sin[x]/(1 + Cos[x])] will give us
Tan[x/2]. The angle
x was changed to
I don't want the angle to change during simplification. So, Mathematica should not convert
Can I force Mathematica to simplify an expression under this constraint?