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PRE TEST DBM10013

Authored by Siti Zubaidah

Mathematics

University

Used 4+ times

PRE TEST DBM10013
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10 questions

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1.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

1.     Express the equation as a single fraction in its simplest form.

 15m52v15mv\frac{1}{5m}-\frac{5-2v}{15mv}  

 v13mv\frac{v-1}{3mv}  

 v+13mv\frac{v+1}{3mv}  

 v515mv\frac{v-5}{15mv}  

 v+515mv\frac{v+5}{15mv}  

2.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Factorise and simplify 

 4e12ef2e\frac{4e-12ef}{2e}  

 2(13f)2\left(1-3f\right)  

 2(13ef)2\left(1-3ef\right)  

 e12efe\frac{e-12ef}{e}  

 2e6ef2e\frac{2e-6ef}{2e}  

3.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Construct partial fraction for 

 2xx2x6\frac{2x}{x^2-x-6}  

 Ax+2+Bx3\frac{A}{x+2}+\frac{B}{x-3}  

 Ax2+Bx3\frac{A}{x-2}+\frac{B}{x-3}  

 Ax2+Bx+3\frac{A}{x-2}+\frac{B}{x+3}  

 Ax+2Bx3\frac{A}{x+2}-\frac{B}{x-3}  

4.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Simplify 

 (6i)3\left(6i\right)^3  

 216i-216i  

 216i216i  

 216i2-216i^2  

 126-126  

5.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Simplify

 4i(28i)4i\left(-2-8i\right)  

 832i8-32i  

 8i32-8i-32  

 32+8i-32+8i  

 328i32-8i  

6.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Given

 z=3+4iz=-3+4i  . Find  z\left|z\right|  

 55  

 5-5  

 7\sqrt{7}  

 77  

7.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

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