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**Question:**

Use Lagrange multiplier method to determine the point on the curve

y=1-[tex]x^2[/tex]

that maximises the function f(x,y)=2x + y.

Hence find the maximum value of f.

**Attempt at Solution:**

Okay I used the Lagrange method to get a point on the curve and I got (1,0)

How do I find the maximum value of f though?