exp(x) exp(— г) - tanh(x) x ɛ [-2,2] in 4 sub–intervals exp(x) + exp(— х) The nodes are x,= – 2, x,= – 1, x2 0, x, = 1, x, = 2 4. Write down the the cardinal functions for these 5 nodes, and use the Lagrange polynomials to interpolate these 5 nodes, show the polynomial.

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