y=x+3x-8 at (2,6). 43. Find the slope of the tangent line to the curve y(x²-15)6 at x-4. Then write the equation of this tangent line. 44. Find the equation of the tangent line to the curve 8 at x = 2. x²+x+2

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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Q43,Q51&Q53 As these are very easy questions so solve all three questions in the order to get positive feedback Please solve both questions correctly in 30 minutes and get the thumbs up please show neat and clean work for it By hand solution needed
102 CHAPTER 1 The Derivative
Check Your Understanding 1.6
1. Find the derivative
dx (x).
EXERCISES 1.6
Differentiate.
1. y = 6x³
3. y=3√x
5.ya_2
7. f(x)=x+x³+x
9. y = (2x+4)³
11. y=(x³ + x² +1)
13. y=-=
15. y=3√2x²+1
17. y = 2x + (x + 2)³
19. y = 1
= 5x5
1
21. y ³+1
1
23. y=x+x+1
25. f(x)=5√3x³ + x
27. y= 3x + 7³
29. y= V1+x+x²
2
1-5x
31. y T
45
1 + x + √x
35. y=x+1+√x+1
37. f(x) =
33. y=-
22. y =
24. y = 2√x+1
1
x³ + x + 1
V1+x²
1
2x+5
7
VI+x
34. y=(1+x+x²)
26. y
28. y=
30, y =
32. y=-
2. y = 3x4
4. y=_1_
3.x²
6. f(x) = 12 + 7/3
8. y = 4x³ - 2x²+x+1
10. y=(x²-1)³
12. y = (x² + x)-2
14. y - 4(x²-6)-3
16. y = 2√x+1
18. y (x-1)³ + (x+2)*
20. y(x²+ 1)² + 3(x² - 1)²
im
36. y = ²x
8. y = (x - 1) ¹
y=
39. f(x)=3x² - 2x + 1, (1, 2)
40. f(x) = x10 + I + VI − x, (0, 2)
1/(a+h)+ g(a+h)]-[f(a)+ g(a)
h
[f(a+h)-f(a) g(a+h)-g(a)
h
h
f(a+h)-f(a)
h
-f(a)+g'(a).
In Chapter 3, the general power rule will be proved as a special case of the chain rule.
-lim
In Exercises 39 and 40, find the slope of the graph of y=f(x) at the
designated point.
-lim
g(a+h)-g(a)
h
+lim
Solutions can be found following the section exercises.
x + (x³ + 1) ¹0
2. Differentiate the function y
Limit of a sum.
41. Find the slope of the tangent line to the curve y = x³ + 3x - 8
at (2,6).
42. Write the equation of the tangent line to the curve
y=x+3x-8 at (2,6).
43. Find the slope of the tangent line to the curve y(x²-15)6
at x4. Then write the equation of this tangent line.
44. Find the equation of the
angent line to the curve
y" x²+x+2
at x = 2.
45. Differentiate the function f(x)-(3x²+x-2)² in two
ways.
(a) Use the general power rule.
(b) Multiply 3x²+x-2 by itself and then differentiate the
resulting polynomial.
46. Using the sum rule and the constant-multiple rule, show that
for any functions f(x) and g(x)
8 mua
vest
y6r+1
f(x)-8(x)=f(x)-8(x)
dx
47. Figure 2 contains the curves y = f(x) and y= g(x) and the
tangent line to y=f(x) at x = 1, with g(x)=3-f(x). Find
g(1) and g'(1).
y = f(x)
d
y = g(x)
Figure 2 Graphs of f(x) and g(x) = f(x).
x
Transcribed Image Text:102 CHAPTER 1 The Derivative Check Your Understanding 1.6 1. Find the derivative dx (x). EXERCISES 1.6 Differentiate. 1. y = 6x³ 3. y=3√x 5.ya_2 7. f(x)=x+x³+x 9. y = (2x+4)³ 11. y=(x³ + x² +1) 13. y=-= 15. y=3√2x²+1 17. y = 2x + (x + 2)³ 19. y = 1 = 5x5 1 21. y ³+1 1 23. y=x+x+1 25. f(x)=5√3x³ + x 27. y= 3x + 7³ 29. y= V1+x+x² 2 1-5x 31. y T 45 1 + x + √x 35. y=x+1+√x+1 37. f(x) = 33. y=- 22. y = 24. y = 2√x+1 1 x³ + x + 1 V1+x² 1 2x+5 7 VI+x 34. y=(1+x+x²) 26. y 28. y= 30, y = 32. y=- 2. y = 3x4 4. y=_1_ 3.x² 6. f(x) = 12 + 7/3 8. y = 4x³ - 2x²+x+1 10. y=(x²-1)³ 12. y = (x² + x)-2 14. y - 4(x²-6)-3 16. y = 2√x+1 18. y (x-1)³ + (x+2)* 20. y(x²+ 1)² + 3(x² - 1)² im 36. y = ²x 8. y = (x - 1) ¹ y= 39. f(x)=3x² - 2x + 1, (1, 2) 40. f(x) = x10 + I + VI − x, (0, 2) 1/(a+h)+ g(a+h)]-[f(a)+ g(a) h [f(a+h)-f(a) g(a+h)-g(a) h h f(a+h)-f(a) h -f(a)+g'(a). In Chapter 3, the general power rule will be proved as a special case of the chain rule. -lim In Exercises 39 and 40, find the slope of the graph of y=f(x) at the designated point. -lim g(a+h)-g(a) h +lim Solutions can be found following the section exercises. x + (x³ + 1) ¹0 2. Differentiate the function y Limit of a sum. 41. Find the slope of the tangent line to the curve y = x³ + 3x - 8 at (2,6). 42. Write the equation of the tangent line to the curve y=x+3x-8 at (2,6). 43. Find the slope of the tangent line to the curve y(x²-15)6 at x4. Then write the equation of this tangent line. 44. Find the equation of the angent line to the curve y" x²+x+2 at x = 2. 45. Differentiate the function f(x)-(3x²+x-2)² in two ways. (a) Use the general power rule. (b) Multiply 3x²+x-2 by itself and then differentiate the resulting polynomial. 46. Using the sum rule and the constant-multiple rule, show that for any functions f(x) and g(x) 8 mua vest y6r+1 f(x)-8(x)=f(x)-8(x) dx 47. Figure 2 contains the curves y = f(x) and y= g(x) and the tangent line to y=f(x) at x = 1, with g(x)=3-f(x). Find g(1) and g'(1). y = f(x) d y = g(x) Figure 2 Graphs of f(x) and g(x) = f(x). x
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