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 Set of Rational numbers in set builder notation: None of these
2 Set of Real numbers = Q Q' Q<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-theme-font:minor-latin;mso-ansi-language: EN-US;mso-fareast-language:EN-US;mso-bidi-language:AR-SA">Ⴖ</span>Q' QUQ'
3 If then name of property used in statement: Transtitive Multiplicative inverse Multiplicative identity None
4 Identify the property used in x > y Or x = y Or x < y: Symmetric Reflexive Irichotomy Transitive
5 ∀ a∈ R⇒ a = a is __________ property: Reflexive Symmetric Transitive Additive property
6 There exists a unique real number 1, is called ________ in multiplication: Multiplicative inverse Additive inverse Multiplicative identity Additive identity
7 Which of the following is closure property w.r.to multiplications: a + b∈ R∀ a, b∈ R a. b∈ R∀ a, b∈ R a + b = b + a∀a,b∈ R a.b = b.a∀a,b∈ R
8 ∀ a∈ R⇒ a + o = a = o + a, then O is called: Multiplicative identity Additive identity Additive inverse Multiplicative inverse
9 Which of the following is associative property w.r.to addition: a + b = b + a a (bc) = (ab) c a + (b + c) = (a + b) + c None of these
10 ∀ a,b∈ R, a + b = b + a is _____________ Property of real numbers. Closure property w.r.to '+' Closure property w.r.to 'x' Commutative property '+' Commutative property w.r.to 'x'
11 Simplify:
12 Conjugate of 4i - 3 is: 4i + 3 -4i - 3 -4i + 3
13 Symbol "For all" is used: A <p class="MsoNormal"><span style="font-size:13.0pt;mso-bidi-font-size:28.0pt; line-height:107%;mso-fareast-font-family:&quot;Times New Roman&quot;;mso-fareast-theme-font: minor-fareast;mso-bidi-font-family:Calibri;mso-bidi-theme-font:minor-latin">Ɐ</span><span style="font-size:13.0pt;mso-bidi-font-size:28.0pt;line-height:107%;mso-fareast-font-family: &quot;Times New Roman&quot;;mso-fareast-theme-font:minor-fareast"><o:p></o:p></span></p> gama D
14 The value of (-i)8: -i i 1 -1
15 is called: Natural number Whole number integers Rational numbers
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