# Algebra - Differential equations and Integrals

Use differential to approximate

square root of 16.3

is this true or false

integral x/x^2+1 dx= arctan(x)+C

integral 1/x^2-1 dx= ln square 1+x/1-x+C

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#### Solution Preview

(1) Let y = sqrt x = x^(1/2)

y + delta y = (x + delta x)^(1/2)

Take x = 16, delta x = 0.3, then ...

#### Solution Summary

The expert examines differential equations and integrals in algebra.

$2.49