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(b) Use the indirect procedure illustrated in Figure 8.4.5 to compute .
(c) Check the result obtained in part (b) by computing directly.
9. Let and , and let
be the matrix for with respect to the basis .
(a) Find and .
(b) Find and .
(c) Find a formula for .
(d) Use the formula obtained in (c) to compute .
10. Let be the matrix of with respect to the bases and
, where
(a) Find , , , and .
(b) Find , , , and .
(c) .
Find a formula for
