Question: h(x) = 3 x cos x 1, where x is in radians. a. Show that the equation h(x) = 0 has a root,

h(x) = 3 √x − cos x − 1, where x is in radians.

a. Show that the equation h(x) = 0 has a root, α, between x = 1.4 and x = 1.5.

b. By choosing a suitable interval, show that α = 1.441 is correct to 3 decimal places.

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