1.

Let theta, phi in [0,2pi] be such that 2cos theta(1-sin phi)=sin^(2)theta("tan"(theta)/2+"cot"(theta)/2)cos phi-1, tan (2pi-theta)gt0 and -1lt sin theta lt -(sqrt(3))/2. Then phi can not saitsfy

Answer»

`0 lt philt(PI)/2`
`(pi)/2 lt PHI lt (4pi)/3`
`(4pi)/3lt phi lt (3pi)/2`
`(3pi)/2lt phi lt 2pi`

Answer :A::C::D


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