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(d) Find
(e) Sketch the graph of the polynomial in part (d). , and let be the function defined by the
Let , , and be distinct real numbers such that
21. formula
(a) Show that T is a linear transformation.
(b) Show that T is one-to-one.
(c) Verify that if , , and are any real numbers, then
where
(d) What relationship exists between the graph of the function
and the points , , and ?
