Use Eq. (11) to find the t-intervals on which c(t) = (t 2 , t 3
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Use Eq. (11) to find the t-intervals on which c(t) = (t2, t3 − 4t) is concave up.
Transcribed Image Text:
d²y x' (t)y"(t)- y' (t)x"(t) dx² x'(1)³
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