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Question: beginner question on trig simplification

Question:beginner question on trig simplification

Tycho Brahe 20 Maple
simplification trig
January 27 2023
1

I'm terribly sorry to ask such elementary questions.

I am getting started on Maple and the most trivial calculations are taking hours.

For example the expression:

b := exp(-i*varphi)*sin(theta/2)*cos(theta/2) + cos(theta/2)*exp(i*varphi)*sin(theta/2)

can be simplifed to           sin(theta)*Cos(Phi)

but no amount of commands such as simplify(b,trig) or combine(b, exp) will do it.

Any hits will be appreciated.
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