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If sin A = 1/sqrt(5), cos B = 3/sqrt(10)...

If sin A = 1/`sqrt(5)`, cos B = 3/`sqrt(10)`, A, B being positive acute angles, then what is (A + B) equal to ?

A

`(pi)/(6)`

B

`(pi)/(4)`

C

`(pi)/(3)`

D

`(pi)/(2)`

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The correct Answer is:
B
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