Choose the Correct answer for the following: dy 1- dx for y - sech' x is equal to: a) sech x tanh x b) 3sech sech tanh x c)-3sech2x sechx tanhx

Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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1%91 .
IV:-Y
+
= امتحان ریاض x
مسلسل الطفو x
فور رید!- قر x
• docs.google.com/fo
أسئلة الفصل الاول رياضيات حاسبات
Middle Technical University
Electrical Engineering Technical College
Department of Computer Techniques
Engineering
Subject:Mathematics
Stage: Firs Year Class
Date:
Lecturer: Ban Farhan Dawood
الفصل الأول
2020-2021
Time: one and half hour
Choose the Correct answer for the following:
1-
dx
* for y= sech³ x is equal to:
a) sech x tanh x
b) 3sech sech tanh x
c)-3sech?x sechx tanhx
2- 2 for y = logs(x+ 1)² is equal to:
dx
5(x+1)
b)
(x+1)in5
(x+1)
c)
(x+1)In5
a)
2
3-2 for y =x sinx is equal to:
a)2x cosx
b) 2x sinx + cosx 2x
c) x cosx + sinx 2x
4- If f(x)
x*+x-9
x2-3
then lim /(x) is equal to:
a)3
b)4
c)2
5- 2 for y = tan (3x) is equal to:
a) 6x sec(3x) tan(3x²)
b) sec (3x)
c) 6x sec (3x)
* for y = (4x"- 6x²+5) is equal to:
b)16x -12x+5
6-
dx
12
-6x
c)16x -12x
a)
dy
for csche is equal to:
7-
dx
de
a) csch e.cothe
b) – csch e.coth e
de
c) - csch e.coth e
dx
8- for y = (x?+ 1)5
a)10(x2 + 1)5
dx
b) 10x(x? + 1)*
c) (x² + 1)*
9-
for y = cosx is
dx
a)sinx
b)sin2x
c)-sinx
10- Sin'x - cos'x is equal to:
a)2x
b)l
c)-1
Head of department
Lecturer
II
<>
Transcribed Image Text:1%91 . IV:-Y + = امتحان ریاض x مسلسل الطفو x فور رید!- قر x • docs.google.com/fo أسئلة الفصل الاول رياضيات حاسبات Middle Technical University Electrical Engineering Technical College Department of Computer Techniques Engineering Subject:Mathematics Stage: Firs Year Class Date: Lecturer: Ban Farhan Dawood الفصل الأول 2020-2021 Time: one and half hour Choose the Correct answer for the following: 1- dx * for y= sech³ x is equal to: a) sech x tanh x b) 3sech sech tanh x c)-3sech?x sechx tanhx 2- 2 for y = logs(x+ 1)² is equal to: dx 5(x+1) b) (x+1)in5 (x+1) c) (x+1)In5 a) 2 3-2 for y =x sinx is equal to: a)2x cosx b) 2x sinx + cosx 2x c) x cosx + sinx 2x 4- If f(x) x*+x-9 x2-3 then lim /(x) is equal to: a)3 b)4 c)2 5- 2 for y = tan (3x) is equal to: a) 6x sec(3x) tan(3x²) b) sec (3x) c) 6x sec (3x) * for y = (4x"- 6x²+5) is equal to: b)16x -12x+5 6- dx 12 -6x c)16x -12x a) dy for csche is equal to: 7- dx de a) csch e.cothe b) – csch e.coth e de c) - csch e.coth e dx 8- for y = (x?+ 1)5 a)10(x2 + 1)5 dx b) 10x(x? + 1)* c) (x² + 1)* 9- for y = cosx is dx a)sinx b)sin2x c)-sinx 10- Sin'x - cos'x is equal to: a)2x b)l c)-1 Head of department Lecturer II <>
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