(Q11).Find the 11
th
term of the A.P.: -3,
-1
2
, 2,...
Given A.P. = – 3, –
1
2
, 2,...
a
1
= -
; d = a
2
– a
1
= –
– (-
) = –
= -
+
=
-
+
=
a
n
= a + (n – 1) d
= -
+ (
-1) ×
= -
+
×
= -
+
×
= -
+
=
Clear