Question

Consider the function: f(x)=7x^5−ax^7 where a is a constant. Find the value of a such that...

Consider the function: f(x)=7x^5−ax^7 where a is a constant. Find the value of a such that f(x) has a local minimum at x=1 ? Which of the following lists contains this value of a ?

- 3, 4, 5 , 6, 7

-20, 21, 22 , 23, 24

-29, 30, 31, 32, 33

- -7,-6,-5, -4, -3

Math   Calculus   
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Homework Answers

Answer #1

Since function has local maximum at , function has critical point at

Therefore

The list containing value of a is given by

- 3, 4, 5 , 6, 7

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