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CBSE
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MCQ Questions for CBSE Class 12 with Answers
MCQ Questions for CBSE Class 11 with Answers
MCQ Questions for CBSE Class 10 with Answers
MCQ Questions for CBSE Class 9 with Answers
MCQ Questions for CBSE Class 8 with Answers
MCQ Questions for CBSE Class 7 with Answers
MCQ Questions for CBSE Class 6 with Answers
MCQ Questions for CBSE Class 5 with Answers
MCQ Questions for CBSE Class 4 with Answers
MCQ Questions for CBSE Class 3 with Answers
MCQ Questions for CBSE Class 2 with Answers
MCQ Questions for CBSE Class 1 with Answers
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Jenkins Class 10 MCQ Questions With Answers
1.
Find the product (1+3i)(2-i)
5+5i
5-5i
2-3i
5+7i
2.
(-7+6i)2
49+36i
85
13-84i
13+84i
3.
(-3-i)(6-i)
-21-7i
-19-3i
-15-5i
-17-9i
4.
(6+i)(-3+6i)
3+7i
-18+6i
-24+6i
-18+12i
5.
How do you write a complex number?
a-bi
a+bi
ai+b
ai-b
6.
Simplify3i - (4 + 7i)
-4 + 10i
21 - 12i
4 - 10i
-4 - 4i
7.
√-81
9i
-9i
-9
9
8.
(2i)(3i)
5i
-5
6i
-6
9.
(5-2i) + (-7+8i)
-2+6i
12+6i
-35-16i2
-35 -16i
10.
What does i2 = ?
-1
√-1
1
-√1
11.
Simplify: (10+ 15i) - (48 - 30i)
58 - 45i
58 - 15i
-38 - 15i
-38 + 45i
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