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November 22nd, 2013, 06:56 PM   #1
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Elimination Technique

Hey Im stuck on this one question.

Eliminate t to give an equation that relates x and y: x=tan(9) , y=sec^2(t)-2

y=_________________

My answer I got after combining the 2 formulas was y=x^2-2, but its wrong...so im sort of stuck here now.

Any help appreciated!
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November 22nd, 2013, 07:28 PM   #2
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Re: Elimination Technique

y = sec˛(t) - 2 = tan˛(t) + 1 - 2 = x˛ - 1.
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November 22nd, 2013, 07:38 PM   #3
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Re: Elimination Technique

OHH

thanks!!!
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November 23rd, 2013, 03:07 AM   #4
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Re: Elimination Technique

Hello, SamFe!

A slightly different approach . . .


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