Maths integration help
Help! I don’t get how they got the circled part I got different
(edited 1 year ago)
I advise you to actually check your algebra first before asking. Not that it's a stupid question, but it feels like "oh I got it wrong, and I'm not bothered to find out why on my own". Anyway.
The step you are concerned about is related to the formula sin(2x)=2sin(x)cos(x). So one step should look particularly enticing to answer your query...
The step you are concerned about is related to the formula sin(2x)=2sin(x)cos(x). So one step should look particularly enticing to answer your query...
(edited 1 year ago)
Original post by Alevelhelp.1
Help! I don’t get how they got the circled part I got different
Then use this identity:
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