Complex Number: multiply & divide
Authored by Syamsiah Hussin
Mathematics
12th Grade - University
CCSS covered
Used 43+ times
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9 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Give your answer in the form of a+bi for (8-3i)(5-2i)
13 - 5i
34 - 31i
-31 + 34i
5 -13i
Tags
CCSS.HSN.CN.A.2
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Solve 5( - 6 + 4i)
-30 - 20i
-20 +30i
30 + 20i
-30 + 20i
Tags
CCSS.HSN.CN.A.2
3.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
If z1 = 2 + 5i and z2 = 3 - 2i, determine z1x z2.
-11i +16
16 - 11i
16 + 11i
-16 -11i
Tags
CCSS.HSN.CN.A.2
4.
MULTIPLE CHOICE QUESTION
5 sec • 1 pt
What is the conjugate of 2 - 7i ?
7 + 2i
2 + 7i
-2 - 7i
-2 + 7i
Tags
CCSS.HSN.CN.A.3
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Refer to the above image, what is the conjugate of the denominator?
-1 + 5i
1 - 5i
1 + 5i
-1 - 5i
Tags
CCSS.HSA.APR.D.6
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Refer to the above image, what is the conjugate of the denominator?
8 + 6i
6 + 8i
6 - 8i
-6 +8i
Tags
CCSS.HSA.APR.A.1
7.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
If z1 = 2 + 5i and z2 = 4 - i, determine z1/z2
3/17 + 22i/17
22/17 + 3i/17
3/17 + 22/17i
3/17 - 22i/17
Tags
CCSS.HSN.CN.A.3
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