For Parts (a) (b), find fr and fy, and make it clear which answer is which. (a) f(x,y) = x3 + 4.x²y+4x – (b) ƒ(x, y) = xe"Y + y² sin(xy) 3y + 2 %3D

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A: Hi thanks you for posting this question  , since you have posted multiple subparts as per our policy…

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Q: can you solve g, h, and j too please?

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Q: the question didnt have any other information would you be able to solve part d

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Q: Can you explain part (ii) more? just like a basic step by step explanation of everything that…

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Q: how about part D, how to solve that?

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A: Since we only answer up to 3 sub-parts, we’ll answer the first 3. Please resubmit the question and…

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Q: Is your answer to question 3 the real solution or an extraneous solution? Explain how you know

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Q: an more work be shown on how to solve this

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Q: could you solve the second question as well

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Q: Can you explain the second question/step 2 more clearly? I'm having trouble following what to do.

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