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(a) Find the differential dy and (b) evaluate dy for the given values of x and dx . 0 votes

(a) Find the differential dy and (b) evaluate dy for the given values of x and dx .

You are watching: Find the differential dy. y = 15 + x2

differentialaskedJan 20, 2015in CALCULUSby anonymous
Please log in or register to add a comment. Please log in or register to answer this question. 1 Answer 0 votes

Step 1:

(a)

The function is

*

Differentiate the function with respect to

*
.

*

Use the property :

*

*

Apply power rule of derivatives :

*
.

Apply constant rule of derivatives :

*

*

Hence,

*

The differential function is

*
.

Step 2:

(b)

The differential function is

*
.

Substitute

*
in above function.

See more: 11*.25 - Fraction To Decimal: 11/25

*

*

Solution :

(a)

The differential function is

*
.

(b)

*

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