Difference between revisions of "009A Sample Final 1, Problem 8"

Revision as of 21:25, 1 February 2016

Let

y=x^{3}

a) Find the differential

dy

of

y=x^{3}

at

x=2

.

b) Use differentials to find an approximate value for

1.9^{3}

.

Foundations:

Solution:

(a)

(b)

Step 2:

Step 3:

(c)

Step 1:

@@ Line 1: / Line 1: @@
+<span class="exam">Let
+::::::<math>y=x^3</math>
+::<span class="exam">a) Find the differential <math>dy</math> of <math>y=x^3</math> at <math>x=2</math>.
+::<span class="exam">b) Use differentials to find an approximate value for <math>1.9^3</math>.
 {| class="mw-collapsible mw-collapsed" style = "text-align:left;"
 !Foundations: &nbsp;