Complex Numbers, Trigonometry, Vectors & Statistics
Authored by Krishnaveni Cheruvu
Mathematics
University
Used 3+ times
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20 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
(-3+2i) - (7-9i) =
-4+7i
10-7i
4+11i
-10+11i
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
(1+2i)(1-3i) =
-7+i
5-i
7-i
-5-i
3.
FILL IN THE BLANKS QUESTION
1 min • 1 pt
The conjugate of -7-5i =
(a)
4.
FILL IN THE BLANKS QUESTION
1 min • 1 pt
The modulus of -4+3i is
(a)
5.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
The amplitude of 1+i is
450
900
600
300
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
If ABC is a right-angled triangle with angle B as 900 and angle C as x then Cos x =
AB/AC
AC/BC
BC/AC
AC/AB
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
In the right-angled triangle ABC if angle B is right-angled and angle C is x then tan x =
BC/AB
AB/BC
AB/AC
BC/AC
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