4. If f(x) = sin x, show that f(2.x) = 2f(x)f(-x) %3D

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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3. If f(x) = x(x+1), show that
f(x+h)- f(x) = h(2x +1+h)
4. If f(x) = sin x, show that f(2x) = 2f(x)f(- -x)
Transcribed Image Text:3. If f(x) = x(x+1), show that f(x+h)- f(x) = h(2x +1+h) 4. If f(x) = sin x, show that f(2x) = 2f(x)f(- -x)
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