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The locus of the point (2sec alpha cos b...

The locus of the point `(2sec alpha cos beta, 2 sec alpha sin beta, 2tanalpha)` is

A

`x^(2)+y^(2)-z^(2)=r^(2)`

B

`x^(2)+y^(2)+z^(2)=r^(2)`

C

`x^(2)+y^(2)-z^(2)=2r^(2)`

D

`x^(2)-y^(2)+z^(2)=r^(2)`

Text Solution

Verified by Experts

The correct Answer is:
a
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