Question

the angle subtended by the chord X + Y equal one at centre of circle X square + Y square equal 1​

Answer 1

Answer:

option b

Step-by-step explanation:

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Answer 2

Answer:

(c)

Step-by-step explanation:

x+y=1 will cut the circle x²+y²=1 at (0,1) and (1,0).

Clearly this will form a right angle at the center (0,0).

Hence answer will be π/2

This is right I think

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