QI) Choose Correct answer? write number of question and (leter of choice) 1- If x = a:e:b, then, the x-axis of plot(x) will be: b-) a:e:b. a-) 1: length(x). c-) a:b. d-) no one from these 2- ezplot('x+3') shows: a-)Graph of line at (0,2pi). e-)graph of x+3=0 at (-2*pi 2"pi). b-) gives error becuase x is unknown. d-) no one from these 3- for two polynomials p and g will have: a-) p*g conv(p,g) and g/p invconv(g.p). b-) conv(p,g) = p*g and deconv(p.g) = p/g. c-) vector p- vector g. gives plolynomial p - polynomial g. d-) if the length of both vectors are not same we can't add them.

Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
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QI) Choose Correct answer? write number of question and (leter of choice)
1- If x = a:e:b, then, the x-axis of plot(x) will be:
b-) a:c:b.
a-) 1: length(x).
c-) a:b.
d-) no one from these
2- czplot('x+3') shows:
a-)Graph of line at (0,2pi).
e-)graph of x+3=0 at (-2*pi 2*pi).
b-) gives error becuase x is unknown.
d-) no one from these
3- for two polynomials p and g will have:
a-) p*g = conv(p,g) and g/p invconv(g.p).
b-) conv(p,g) = p*g and deconv(p.g) = p/g.
c-) vector p- vector g. gives plolynomial p - polynomial g.
d-) if the length of both vectors are not same we can't add them.
4- length of X-sum(repmat(rand(2,3),2,3)), equal:
a-)length(X)=6. b-) length(X)=4. c-)length(X)=9. d-)length(X)=3.
5. A=rand(3,4); >> A(4,5)=1, this means A(4,:) and last column in A:
a-)have ony one zero;
c-)have the same lemgths
b-) All eaements will be zero
d-)sum (A(:,5)=1
Transcribed Image Text:QI) Choose Correct answer? write number of question and (leter of choice) 1- If x = a:e:b, then, the x-axis of plot(x) will be: b-) a:c:b. a-) 1: length(x). c-) a:b. d-) no one from these 2- czplot('x+3') shows: a-)Graph of line at (0,2pi). e-)graph of x+3=0 at (-2*pi 2*pi). b-) gives error becuase x is unknown. d-) no one from these 3- for two polynomials p and g will have: a-) p*g = conv(p,g) and g/p invconv(g.p). b-) conv(p,g) = p*g and deconv(p.g) = p/g. c-) vector p- vector g. gives plolynomial p - polynomial g. d-) if the length of both vectors are not same we can't add them. 4- length of X-sum(repmat(rand(2,3),2,3)), equal: a-)length(X)=6. b-) length(X)=4. c-)length(X)=9. d-)length(X)=3. 5. A=rand(3,4); >> A(4,5)=1, this means A(4,:) and last column in A: a-)have ony one zero; c-)have the same lemgths b-) All eaements will be zero d-)sum (A(:,5)=1
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