Linear Dependence of Three Functions. Three Functions y1(t) ,y2(t), and y3(t) are said to be linearly dependent on an interval I if, on I, at least one of these functions is a linear combination of the remaining two [e.g., if ]. Equivalently (compare Problem 33), y1,y2, and y3 are linearly dependent on I if there exist constants C1,C2,and C3, not all zero, such that
for all t in I. Otherwise, we say that these functions are linearly independent on I. For each of the following, determine whether the given three functions are linearly dependent or linearly independent on
: (a)
(b) (c)
(d)
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