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Select and write the correct answer from the given alternatives in each of the following : `tan(A+B)=sqrt3` and `cosec(A-B)=2` then values of `A,B ` are

A

`45^@,15^@`

B

`15^@,30^@`

C

`60^@,45^@`

D

`45^@,45^@`

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