1.

A line which makes an acute angle theta with the positive dirction of the x-axis is drown through the point P(3,4) to meet the line x=6 at R and y=8 at S. Then.

Answer»

`PR=3sec THETA`
`PS=4cosectheta`
`PR+PS=(2(sintheta+4costheta))/(SIN 2theta)`
`9/(PR)^2+16/(PS)^2=1`

Answer :A::B::C::D


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