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If sin(A+B)=cos(A-B)=1, then:...

If `sin(A+B)=cos(A-B)=1`, then:

A

`A=B=0^(@)`

B

`A=B=45^(@)`

C

`A=60^(@),B=30^(@)`

D

`A=90^(@),B=60^(@)`

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X BOARDS-QUESTION PAPER 2022 TERM 1 SET 2 BASIC-SECTION B
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  18. If sin(A+B)=cos(A-B)=1, then:

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