Find the second derivative of the vector-valued function F(t) = (6t+3 sin(t))i + (3t + 4 cos(t))] 7"(t) =

Advanced Engineering Mathematics
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ISBN:9780470458365
Author:Erwin Kreyszig
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Chapter2: Second-order Linear Odes
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Question 7
♥
Find the Derivative of a Vector-Value Function
Find the second derivative of the vector-valued function
F(t) = (6t+3 sin(t))i + (3t+ 4 cos(t))j
7"(t) =
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Transcribed Image Text:Question 7 ♥ Find the Derivative of a Vector-Value Function Find the second derivative of the vector-valued function F(t) = (6t+3 sin(t))i + (3t+ 4 cos(t))j 7"(t) = Question Help: Video Submit Question
Expert Solution
Step 1: Find the first derivative

Given vector-valued function is  


                    r with rightwards arrow on top open parentheses t close parentheses space equals space open parentheses 6 t space plus space 3 space sin open parentheses t close parentheses close parentheses space i with rightwards arrow on top space plus space open parentheses 3 t space plus space 4 space cos open parentheses t close parentheses close parentheses space j with rightwards arrow on top


   the first derivative of the given vector-valued function is 


                  r with rightwards arrow on top apostrophe open parentheses t close parentheses space equals space fraction numerator d r over denominator d t end fraction equals fraction numerator d over denominator d t end fraction open square brackets space open parentheses 6 t space plus space 3 space sin open parentheses t close parentheses close parentheses space i with rightwards arrow on top space plus space open parentheses 3 t space plus space 4 space cos open parentheses t close parentheses close parentheses space j with rightwards arrow on top close square brackets


                   r with rightwards arrow on top apostrophe open parentheses t close parentheses space equals open parentheses 6 fraction numerator d over denominator d t end fraction open parentheses t space close parentheses plus space 3 fraction numerator d over denominator d t end fraction space open parentheses sin open parentheses t close parentheses close parentheses close parentheses space i with rightwards arrow on top space plus space open parentheses 3 fraction numerator d over denominator d t end fraction open parentheses t close parentheses space plus space 4 fraction numerator d over denominator d t end fraction space open parentheses cos open parentheses t close parentheses close parentheses close parentheses space j with rightwards arrow on top


                  r with rightwards arrow on top apostrophe open parentheses t close parentheses space equals open parentheses 6 open parentheses 1 close parentheses plus space 3 space open parentheses cos space open parentheses t close parentheses close parentheses close parentheses space i with rightwards arrow on top space plus space open parentheses 3 open parentheses 1 close parentheses space plus space 4 space open parentheses negative sin space open parentheses t close parentheses close parentheses close parentheses space j with rightwards arrow on top


                    r with rightwards arrow on top apostrophe open parentheses t close parentheses space equals open parentheses 6 plus space 3 cos space open parentheses t close parentheses close parentheses space i with rightwards arrow on top space plus space open parentheses 3 space minus space 4 space sin space open parentheses t close parentheses close parentheses space j with rightwards arrow on top

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