Question

Complex Numbers
EXERCISE 1.1
(SDG)
too
VERY SHORT ANSWER TYPE QUESTIONS
1. Express the following in the form of a +ib
06-50
-0(21) ifti
3(7+71) + f(7+71)
w7@-3063 +4) [March 2017AM ) - 13 + 2) (2v3 - 1)
vina +20° march 201775 i (1-0 (1 + 1)
4 +213 +41 2 + 51 2 - 51
4 + 3i
xi)
1 - 2 2 + 3i
xiii)
3.- 213 +21
a +ib
(2 +31)(4 - 31)
4. Find the additive inverse of the following
Y(V3,5) (March 90) (-6,5)+(10,- 4) ii) (2, 1)(-4, 6)
3. Find the multiplicative inverse of
+
xii) 4 - ib
3,4) ii) 7 + 24i [March 2016TS, May 2015AP]
in 15 +3i 3-1
4. Find the complex conjugate of
1)3+4i u +40) (2-30) [May 2017TS, 2016AP, 2014, April 97]
51
in) (15 + 31)-(4-201) Ivy (2 +51)(-4+61)
[March 2015AP)
7ti
Find the real and imaginary parts of the complex number
6. If z = (cos e, sin e), then find the value of z
7. If z = 2 - 3i, show that 2 - 4z + 13 = 0.
a + ib
a-ib
1
[March 20​

Answer 1

Answer:

Complex Numbers

EXERCISE 1.1

(SDG)

too

VERY SHORT ANSWER TYPE QUESTIONS

1. Express the following in the form of a +ib

06-50

-0(21) ifti

3(7+71) + f(7+71)

w7@-3063 +4) [March 2017AM ) - 13 + 2) (2v3 - 1)

vina +20° march 201775 i (1-0 (1 + 1)

4 +213 +41 2 + 51 2 - 51

4 + 3i

xi)

1 - 2 2 + 3i

xiii)

3.- 213 +21

a +ib

(2 +31)(4 - 31)

4. Find the additive inverse of the following

Y(V3,5) (March 90) (-6,5)+(10,- 4) ii) (2, 1)(-4, 6)

3. Find the multiplicative inverse of

+

xii) 4 - ib

3,4) ii) 7 + 24i [March 2016TS, May 2015AP]

in 15 +3i 3-1

4. Find the complex conjugate of

1)3+4i u +40) (2-30) [May 2017TS, 2016AP, 2014, April 97]

51

in) (15 + 31)-(4-201) Ivy (2 +51)(-4+61)

[March 2015AP)

7ti

Find the real and imaginary parts of the complex number

6. If z = (cos e, sin e), then find the value of z

7. If z = 2 - 3i, show that 2 - 4z + 13 = 0.

a + ib

a-ib

1

[March 20

Answer 2

Answer:

The Side of a square whose diagonal is 16√ 2 cm is .... *

4

16

8

24