Solved Questions - Calculus for Life Sciences | Review Exam 1 | MAT 251, Exams of Mathematics

Material Type: Exam; Class: Calculus for Life Sciences; Subject: Mathematics; University: Arizona State University - Tempe; Term: Unknown 1989;

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MAT251 โ€“ EXAM 1 REVIEW
A. Limits โ€“ 2.1, 2.2
Remember
0
0
is not an answer!
Compute the limits.
1.
16
209
4
2
2
lim
โˆ’
+โˆ’
โ†’x
xx
x
2.
9
3
9
lim
โˆ’
โˆ’
โ†’x
x
x
3.
h
h
hโˆ’
โˆ’
โ†’5
5
11
5
lim
4. Evaluate the limits using the graph.
a)
=
โˆ’
โˆ’โ†’
)(lim
1
xF
x
=
+
โˆ’โ†’
)(lim
1
xF
x
=
โˆ’โ†’
)(lim
1
xF
x
=
โˆ’
)1(F
b) =
โˆ’
โ†’
)(lim
1
xF
x
=
+
โ†’
)(lim
1
xF
x
=
โ†’
)(lim
1
xF
x
=
)1(F
c) =
โˆ’
โ†’
)(lim
3
xF
x
=
+
โ†’
)(lim
3
xF
x
=
โ†’
)(lim
3
xF
x
=
)3(F
pf3
pf4
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Download Solved Questions - Calculus for Life Sciences | Review Exam 1 | MAT 251 and more Exams Mathematics in PDF only on Docsity!

MAT251 โ€“ EXAM 1 REVIEW

A. Limits โ€“ 2.1, 2.

Remember 0

0 is not an answer!

Compute the limits.

9 20

4

2

2

lim

โˆ’

โˆ’ +

โ†’ x

x x

x

3

9

lim

โˆ’

โˆ’

โ†’

x

x

x

  1. h

h

h

โˆ’

โˆ’

โ†’

5

5

1 1

5

lim

  1. Evaluate the limits using the graph.

a) = โ†’ โˆ’โˆ’

lim ( ) 1

F x x

โ†’ โˆ’+

lim ( ) 1

F x x

โ†’ โˆ’

lim ( ) 1

F x x

F(โˆ’ 1 )=

b) = โ†’โˆ’

lim ( ) 1

F x x

โ†’+

lim ( ) 1

F x x

โ†’

lim ( ) 1

F x x

F( 1 ) =

c) = โ†’โˆ’

lim ( ) 3

F x x

โ†’+

lim ( ) 3

F x x

โ†’

lim ( ) 3

F x x

F( 3 )=

B. Average rate of change โ€“ 2.

h

f x h f x

x x

f x f x

x x

y y ( ) ( ) ( ) ( )

2 1

2 1

2 1

  1. The distance function for an object is s(t) = t

2

  • 3t + 2 meters.

a. What is the average speed from 3 seconds to 7 seconds?

b. What is the average speed from 7 seconds to 11 seconds?

  1. Given ( ) 1 ,

2 f x = x โˆ’x+ find the average rate of change of f(x) over the interval [4, 8].

C. Limit Definition of derivative โ€“ 2.

h

f x h f x f x

h

lim 0

โ†’

Use the limit definition of derivative to compute the derivative for the following. SHOW ALL WORK!

2 f x = x โˆ’ x+ 2. x

f x

( )= 3. f (x)= x

D. Constant, Power, Constant multiplier, and Sum & Difference Rules โ€“ 2.

1 c x nx cf x cf x f x g x f x g x

n n โ€ฒ (^) = โ€ฒ= โ€ฒ= โ€ฒ ยฑ โ€ฒ= โ€ฒ ยฑ โ€ฒ

โˆ’

Differentiate the following:

4 3 2 y = x โˆ’ x + x + x+ 2. x

x x x y

3 2 โˆ’ + โˆ’ =

(^3 ) y = x+ x+ x 4.

3

1 3

1 3 3 3 3

โˆ’ 3 3 โˆ’ y= x + x + x + x

  1. 8 cos( ) 3 sin( ) 4 9 3

2 y = x โˆ’ x + x โˆ’ x+ 6. 5

x

y =x โˆ’ x+

ฯ€

A. 1. โ€“1/8 2. 1/6 3. 1/25 4. a) 2 2 2 3 b) โ€“1 0 DNE 0 c) 2 2 2 undefined

B. 1. a.

s

s s m 7 4

b.

s

s s m 15 4

f โˆ’ f

C. 1

lim lim lim

lim lim

0

2

0

2 2 2

0

2 2

0 0

โ†’ โ†’ โ†’

โ†’ โ†’

x h x h

xh h h

h

x xh h x h x x

h

x h x h x x

h

f x h f x f x

h h h

h h

2 0 0 0

0

( )

2 ( ) ( )

2

0

2 2

0 0

lim lim lim

lim lim lim lim

hx x h x x h x

h

hx x h

x x h

hx x h

x x h

h h h

f x h f x f x

h h h

h

xxh

xh xxh

x

h

xh x

h h

โ†’ โ†’ โ†’

โ†’

โ†’

โ†’ โ†’

2

1

2

1

0 0

0 0 0

lim lim

lim lim lim

โˆ’

โ†’ โ†’

โ†’ โ†’ โ†’

x

h x h x x h x x x x

h

h x h x

x h x

x h x

x h x

h

x h x

h

f x h f x f x

h h

h h h

D. 1. ' 36 21 12 2

3 2 y = x โˆ’ x + x+ 2.

2 ' 18 7 4

โˆ’ y= xโˆ’ + x

3 3

2 2

1

4

1 3

1 2

1 '

โˆ’ โˆ’ โˆ’ y = x + x + x 4. 3

4 3

2 4 2 ' 9 9

โˆ’ โˆ’ โˆ’ y= โˆ’ x + x +x โˆ’x

  1. y ' = โˆ’ 8 sin(x)โˆ’ 3 cos(x)+ 8 xโˆ’ 9 6.

5

6 5

4

5

1 5

(^11) '

โˆ’ โˆ’ โˆ’ y= x โˆ’ x โˆ’ x

ฯ€

E. 1. ' 8 cos( ) sin( )

7 8 y = x x โˆ’x x 2. ' cos ( ) sin ( )

2 2 y = x โˆ’ x 3. y ' =sin(x)+xcos(x)

2 ( 3 4 )

x

y 5. cos ( )

' sec ( ) 2

2

x

y = x = 6. sin ( )

2 sin( ) ( 9 )cos( ) ' 2

2

x

x x x x y

1985 y ' = 15888 ( 8 x+ 6 ) 8. y ' = 35 cos( 7 x) 9. ' 4 cos( )sin( )

3 y = โˆ’ x x 10. 2

1 ' ( 7 5 ) 2

7 โˆ’ y= x โˆ’

F. 1. y โˆ’ 5 = 6 (xโˆ’ 2 ) 2. 3 ( 2 )

3

1

y โˆ’ = xโˆ’ 3. yโˆ’ 2 =โˆ’ 3 (xโˆ’ ฯ€)

  1. a. 2 cos( 2 ) sin( 2 )

2 cos( 2 ) sin( 2 ) ( )

1 2 2

t t t t t

t t t v t

โˆ’ โˆ’ = โˆ’

b. ( ) 4 cos( 2 ) 4 sin( 2 ) 2 sin( 2 )

2 1 3 a t t t t t t t

โˆ’ โˆ’ โˆ’ =โˆ’ โˆ’ +

c. (^) s

m s

m

  1. 62

2

  1. a. min

2 ' 0. 003 0. 2

words M = โˆ’ t + t b. min

M ( 10 ) M( 0 ) words

c. 1. min

words