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12th Grade

5 Qs

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Assessment

Quiz

Mathematics

12th Grade

Hard

Created by

Melinda M

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5 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

6 + 3i

5i + 4i

6 + 4i

5 + 3i

Answer explanation

The correct choice is 6 + 4i because it is the sum of (2+3i) and (4+i).

2.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

4 + 5i

4 + 7i

8i + 3i

15i + 3i

Answer explanation

The correct choice is 4 + 7i because it is the sum of (3+5i) and (1+2i).

3.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Answer explanation

The correct choice is 5+i because when we simplify the expression (10-i)-(5-2i), we get 5+i.

4.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Media Image

10
-10
10i
-10i

5.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

What does i2 equal?

-1

√-1

1

-√1

Answer explanation

The value of i^2 is -1 because i is defined as the square root of -1.