Question 1Question 1Question 1Question 1

Answer (b)

Solution:

Answer (b)

Solution:

WhenWhen

=

Question 2Question 2Question 2Question 2

Answer (a)Answer (a)Answer    (a)Answer    (a)

Solution:Solution:

.

Question 3Question 3

==

Answer    (b)Answer    (b)( )( )

SolutionSolution::--

Given =

Also

.

Question 4Question 4

Answer (a)

Solution:‐

Answer (a)

Squaring on both sidesSquaring on both sides

Question 5

Solution:-

Answer (c)

Solution:

Question 6Question 6

Answer (c)Solution:Answer    (c)

we have

==

Question 7

Solution:‐

Answer (d)

Q i 8Question 8

Answer (d)

Solution:-

( )