1.

A circle centered at O has radius 1 and contains point A. Segment AB is tangent to the ciecle at A and angleAOB= theta. If point C lies on OA, and BC bisects the angle ABO, then OC equals

Answer»

`SECTHETA(sectheta-tan theta)`
`(cos^(2)theta)/(1+sintheta)`
`(1)/(1+sintheta)`
`(1-sintheta)/(cos^(2)theta)`

ANSWER :A::C


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