Problem 1. For every real number a, compute the derivative of y = x4 at x = a as a limit of a difference quotient. Show your work.

College Algebra
1st Edition
ISBN:9781938168383
Author:Jay Abramson
Publisher:Jay Abramson
Chapter3: Functions
Section3.3: Rates Of Change And Behavior Of Graphs
Problem 2SE: If a functionfis increasing on (a,b) and decreasing on (b,c) , then what can be said about the local...
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Problem 1. For every real number a, compute the derivative of y = x4 at
x = a as a limit of a difference quotient. Show your work.
Problem 2. For every real number a # 0, for every nonnegative integer n,
for the function f(x) x^, simplify the limit,
I
lim
q→1
f(q. a) – f(a)
-
(q. a) — a
-
Evaluate your simplified limit using the formula for a finite geometric sum,
q" - 1
9-1
1+q+q² + ··· + q-1
...
Use this to compute f'(a) for a 0.
=
Transcribed Image Text:Problem 1. For every real number a, compute the derivative of y = x4 at x = a as a limit of a difference quotient. Show your work. Problem 2. For every real number a # 0, for every nonnegative integer n, for the function f(x) x^, simplify the limit, I lim q→1 f(q. a) – f(a) - (q. a) — a - Evaluate your simplified limit using the formula for a finite geometric sum, q" - 1 9-1 1+q+q² + ··· + q-1 ... Use this to compute f'(a) for a 0. =
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