The solutions to GR3768

Forum for the GRE subject test in mathematics.
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The solutions to GR3768

Post by Chessplayer » Tue Jun 25, 2024 6:49 pm

The newly released practice math Subject Test is very difficult.Is there any solution manual to this available??

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Joined: Mon Jun 17, 2024 1:50 pm

Re: The solutions to GR3768

Post by copilot » Fri Jun 28, 2024 11:01 am

Try here.

I also found this answer on the internet, not sure if its relevant:

We have real-valued differentiable functions (u(x, y)) and (v(x, y)) implicitly defined by the equations:

[ x = f(u, v) \quad \text{and} \quad y = g(u, v) ]

where (f) and (g) are real-valued differentiable functions. We want to find an expression for (\frac{\partial u}{\partial x}).

The correct answer is:

[ \frac{\partial u}{\partial x} = \frac{\partial g}{\partial v} \frac{\partial f}{\partial u} - \frac{\partial f}{\partial v} \frac{\partial g}{\partial u} ]

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Re: The solutions to GR3768

Post by boredmathguy » Sun Jun 30, 2024 4:29 pm

There is no solution manual as far as I know. However, if there are specific questions you're having trouble with, maybe you can post them here and people can explain their solutions?

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