the 10th term of an arithmetic progression is -4 & its 22nd term is -16. find its 38th term
Answers
Answered by
0
c10th term =a+9d= -4 ......eqn.1
22nd term =a+21d = -16 ....eqn2.
from eqn. 1 $2
a+9d =-4
a+21d= -16
- - +
__________
-12d = 12
d=-1
a=-4-9d
a=-4+9
a=5
38th term =a+37d
5-37
-32 =ans.
22nd term =a+21d = -16 ....eqn2.
from eqn. 1 $2
a+9d =-4
a+21d= -16
- - +
__________
-12d = 12
d=-1
a=-4-9d
a=-4+9
a=5
38th term =a+37d
5-37
-32 =ans.
Similar questions