If -chord of a circle be that chord which subtends an angle at the centre of the circle

MATHEMATICS · Single correct · CBSE · Mathematics · Conic Sections · Conic Sections

Problem

\alpha

-chord of a circle be that chord which subtends an angle

\alpha

at the centre of the circle. If

x + y = 1

\alpha

-chord of

x^2 + y^2 = 1

, then

\alpha

is equal to (1)

\frac{\pi}{6}

(2)

\frac{\pi}{4}

(3)

\frac{\pi}{2}

(4)

\frac{3\pi}{4}