Find the Derivative of the Functions y = 2x ^ 3-3x ^ 4 + 19
August 15, 2021 | education
| In order to find the derivative of the function y = 2x ^ 3 – 3x ^ 4 + 19, we first of all recall the property of the derivative of the sum and the difference:
(u + v) ‘= u’ + v ‘;
(u – v) ‘= u’ – v ‘.
So, we apply the property and get:
y ‘= (2x ^ 3 – 3x ^ 4 + 19)’ = (2x ^ 3) ‘- (3x ^ 4)’ + 19 ‘.
Next, we will apply the formula to find the derivative of the exponential function:
(x ^ n) ‘= n * x ^ (n – 1),
And also apply:
(cu) ‘= cu’;
c ‘= 0.
and we get:
(2x ^ 3) ‘- (3x ^ 4)’ + 19 ‘= 2 * 3x ^ 2 – 3 * 4x ^ 3 + 0 = 6x ^ 2 – 12x ^ 3.
Answer: y ‘= 6x ^ 2 – 12x ^ 3.
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