Q1. Equation
(a) Given that
, find
when
(b) Given that’
, find
when
. .
Solution:
(a)
‘

(b)

Q.02 Equation
a) Given that
find
when
(b) Given that
, find
when 
Solution:
(a)
Q.03 Equation
(a) Given that
, find
when
(b) Given that
, find
when 
Solution:
(a)
(b) From (1) part (a) we have