Mathematics 9th Class English Medium Unit 2 Online Test With Answers

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Mathematics 9th Class English Medium Unit 2 Online Test

Sr. # Questions Answers Choice
1 Real part in -3i is: 3 O -3 1
2 If Z and w are two complex number then Z + W
3 If Z1 = a + bi and Z2 = c + di then Z1.Z2 = ac + bdi ac - bd ac - bd + adi + bci multiplication is not possible
4 If Z1 = Z2 then Z2 = Z1 this property is known as _______ property: Reflexive Symmetric Transitive Closure
5 If Z = Z2 and Z2 = Z3 then Z1 = Z3 this property is known as ______ property: Reflexive Symmetric Transitive Commutative
6 Conjugate of -3 is: 3 -3 -3i 3i
7 Conjugate of real number is: Pure imaginary Real Complex None
8 Real part of 2ab ( i + i2) is: 2ab -2ab 2abi -2abi
9 The conjugate of 5 + 4i is -5 + 4i -5 - 4i 5 - 4i 5 + 4i
10 Every real number is also a complex number with imaginary part as ______ 1 b O 10
11 In ________ then a is denoted: a = Im a = Re(z) a = Natural number None of these
12 In Z = a + bi, a is called ______ part of Z. Real Imaginary Whole None
13 Solution of x2= -1 in real numbers: -1 +1 <span style="font-size:11.0pt;mso-bidi-font-size:28.0pt;line-height:107%;font-family: &quot;Calibri&quot;,&quot;sans-serif&quot;;mso-ascii-theme-font:minor-latin;mso-fareast-font-family: &quot;Times New Roman&quot;;mso-fareast-theme-font:minor-fareast;mso-hansi-theme-font: minor-latin;mso-bidi-font-family:&quot;Times New Roman&quot;;mso-bidi-theme-font:minor-bidi; mso-ansi-language:EN-US;mso-fareast-language:EN-US;mso-bidi-language:AR-SA">+1</span> Solution does not exist
14 am.an = am+nis ________ law of exponents. Sum of powers Power of fraction Power of power Law of quotient
15 The real numbers are represented geometrically by points on _________, Plane Line Space None
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