1.

If tantheta=(sinalpha-cosalpha)/(sinalpha+cosalpha), then sinalpha+cosalphaandsinalpha-cosalpha are equal to

Answer»

`SQRT(2)costheta,sqrt(2)SINTHETA`
`sqrt(2)sintheta,sqrt(2)costheta`
`sqrt(2)sintheta,sqrt(2)sintheta`
`sqrt(2)costheta,sqrt(2)costheta`

ANSWER :A::B::C


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