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Question: How to simplify sin(4*pi*w)/sin(2*pi*w) (Answer: 2*cos(2*pi*w), but how to get it?(

Question:How to simplify sin(4*pi*w)/sin(2*pi*w) (Answer: 2*cos(2*pi*w), but how to get it?(

peitsa 15 Maple
simplification trig
September 02 2019
2

I would like to simplify

sin(4*pi*w)/sin(2*pi*w) 

The answer I am looking for is 2*cos(2*pi*w).

Does anyone have an idea how to do this is Maple? Some earlier version of Maple I used could do this, 

simplify( sin(4*pi*w)/sin(2*pi*w) ) =  2*cos(2*pi*w)

There a plenty of different trigonometric representations for the answer, so my hypothesis is that I should somehow tell to Maple which I am looking for. 

For example

Gives

Which is better, but still not the answer I am looking for

Best Regards,

P

 

 

 
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