Question

The distance between Aa B a ( )( ) cos ,0 , 0, sin θ θ is​

Answer 1

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Distance between the point (cosθ,sinθ) and (sinθ,−cosθ) is :

=

(sinθ−cosθ)

2

+(−cosθ−sinθ)

2

=

1−2sinθcosθ+1+2sinθcosθ

(cos

2

θ+sin

2

θ=1)

=

2