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The straight lines represented by `(y-m x)^2=a^2(1+m^2)` and `(y-n x)^2=a^2(1+n^2)` from a rectangle (b) rhombus trapezium (d) none of these

A

rectangle

B

trapezium

C

rhombus

D

None of these

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The correct Answer is:
C
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