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August 19th, 2010, 01:58 AM   #1
mad
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hyperbola

hi guys,

I can't work out this question, could you please help with answer and explain?

for what values of c is the (x,y) solution set of 2x^2 + cy^2 -1 = 0.

thank you.
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August 19th, 2010, 02:33 AM   #2
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Re: hyperbola

Quote:
Originally Posted by mad
hi guys,

I can't work out this question, could you please help with answer and explain?

for what values of c is the (x,y) solution set of 2x^2 + cy^2 -1 = 0.

thank you.
The question is not clear. Can you elaborate further.
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August 19th, 2010, 02:37 AM   #3
mad
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Re: hyperbola

sorry,
for what values of c is the (x,y) solution set of 2x^2 + cy^2 -1 = 0 an hyperbola.
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August 19th, 2010, 05:44 AM   #4
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Re: hyperbola

What is the standard form for the equation of a hyperbola?
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August 20th, 2010, 01:28 AM   #5
mad
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Re: hyperbola

x^2/a^2 - y^2/b^2 = 1.

I spent hours trying, I'm not able to solve it.
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August 20th, 2010, 01:38 AM   #6
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Re: hyperbola

Equation is not given to the hyperbola, but the ellipse
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August 20th, 2010, 01:43 AM   #7
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Re: hyperbola

A = b = 2 because the ellipse-based and
c = 2
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August 20th, 2010, 01:50 AM   #8
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Re: hyperbola

Quote:
Originally Posted by mad
x^2/a^2 - y^2/b^2 = 1.
Looks like any negative c will do it.

Conic sections
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