The following data is given: 2.5 3 4 5 1 7 8 1 a) Write the polynomial in Lagrange form that passes through the points, then use it to caleulate the inter- polated value of y at x 3.5. a) Write the polynomial in Newton's form that passes through the points, then use it to calculate the inter- polated value of y at x 3.5. 2.

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