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# Integration A2 AQA 2sin3xsin2x Help

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1. Help, I need to integrate 2sin3xsin2x so I went to the FB http://filestore.aqa.org.uk/subjects/FORMULAE.PDF

at the bottom of page 5 is the formula I require but I can seem to understand what to let A and B
2. Ive got it now found an uber easy way
3. (Original post by Sniperdon227)
Ive got it now found an uber easy way
Great, well done!
4. (Original post by Sniperdon227)
Ive got it now found an uber easy way
how did u do it
5. (Original post by jamessmith15)
how did u do it
Use sum-to-product formulae.
6. (A+B)/2=3x (A-B)/2=2x Solve simultaneously to give you your A and B respectively then plug straight in!
7. (Original post by Sniperdon227)
(A+B)/2=3x (A-B)/2=2x Solve simultaneously to give you your A and B respectively then plug straight in!
can u show ur working for me plz
8. (Original post by jamessmith15)
can u show ur working for me plz
Surely you can solve two pairs of simultaneous equations? If you are having trouble, post your working up.
9. (Original post by Sniperdon227)
Help, I need to integrate 2sin3xsin2x so I went to the FB http://filestore.aqa.org.uk/subjects/FORMULAE.PDF

at the bottom of page 5 is the formula I require but I can seem to understand what to let A and B
what paper is this question from
10. (Original post by jamessmith15)
what paper is this question from
Solomon edexcel

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