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If cos(A-B)=3/5 and tan A tan B = 2 then...

If `cos(A-B)=3/5` and tan A tan B = 2 then

A

`cosAcosB=1/5`

B

`sinAsinB=-2/5``

C

`cosAcosB=-1/5`

D

`sinAsinB=-1/5`

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