I don't know where to post this, so I'll put it here. If and and a, b, x, and y are real, prove that How do i go about doing this? Other than that and Thanks
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Originally Posted by arze I don't know where to post this, so I'll put it here. If and and a, b, x, and y are real, prove that How do i go about doing this? Other than that and Thanks you have: substitute this into the other equation to get: Multiply this through by to get a quadratic in , and solve for using the quadratic formula and discard the negative solution. CB
so we have then correct? how does this become ?
Originally Posted by arze so we have then correct? how does this become ? You get: so: Now as is intrinsically positive we discard the negative root in the above to get: CB
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