1.

In Delta ABC, if B=60^@,C=45^@ and D divides BC internally in the ratio 1:3 then (sinangleBAD)/(sinangleCAD)=

Answer»

`(1)/(sqrt(6))`
`(1)/(3)`
`(1)/(sqrt(3))`
`(sqrt(2))/(sqrt(3))`

ANSWER :A


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