1.

If tantheta=(x)/(y), then (xsintheta+ycostheta)/(xsintheta-ycostheta) is equal to

Answer»

`(X^(2)+y^(2))/(x^(2)-y^(2))`
`(x^(2)-y^(2))/(x^(2)+y^(2))`
`(x)/(SQRT(x^(2)+y^(2)))`
`(y)/(sqrt(x^(2)+y^(2)))`

ANSWER :A


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