Question: For r ( t ) = 4 e 7 t 2 + t i - 5 l n ( e 5 + 7 t )

For r(t)=4e7t2+ti-5ln(e5+7t)j, find r'(t) and r''(t).
(Give your answer using component form or standard basis vectors. Express numbers in exact form. Use symbolic notatior fractions where needed.)
r'(t)=
r''(t)=
For r ( t ) = 4 e 7 t 2 + t i - 5 l n ( e 5 + 7 t

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