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If x=t+(1/t), y=t-(1/t) and t=parameter then the locus of the point (x, y) is __

A

a)`x^2+y^2=4`

B

b)xy=4

C

c)`x^2-y^2=4`

D

d)x-y=4

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UNITED BOOK HOUSE-TAKI HOUSE-EXERCISE
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  11. x=2cost+3y=2sint+5 and t=parameter find the locus of the point (x,y)

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