Use e-ð to prove lim,1 sin x = sin 1. [Hint: we know sin(1 +h) = sin(1) cos(h) + cos(1) sin(h), which means sin(1 + h) – sin(1) = sin(1) · (cos(h) – 1) + cos(1) · sin(h). =-2 sin () Then use the fact (for free) that sin(x) < |x| for all x.]

Calculus: Early Transcendentals
8th Edition
ISBN:9781285741550
Author:James Stewart
Publisher:James Stewart
Chapter1: Functions And Models
Section: Chapter Questions
Problem 1RCC: (a) What is a function? What are its domain and range? (b) What is the graph of a function? (c) How...
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Use e-d to prove lim→1
sin
sin 1.
[Hint: we know sin(1+ h) = sin(1) cos(h) + cos(1) sin(h), which means sin(1 +h) – sin(1)
sin(1) · (cos(h) – 1) + cos(1) · sin(h)
-2 sin²(÷)
Then use the fact (for free) that sin(x)| < |æ| for all æ.]
Transcribed Image Text:Use e-d to prove lim→1 sin sin 1. [Hint: we know sin(1+ h) = sin(1) cos(h) + cos(1) sin(h), which means sin(1 +h) – sin(1) sin(1) · (cos(h) – 1) + cos(1) · sin(h) -2 sin²(÷) Then use the fact (for free) that sin(x)| < |æ| for all æ.]
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