Math, asked by najishahmed8159, 1 year ago

5th term of


a.p. is 11 and 9th term is 7 find 16th term

Answers

Answered by chirucj11
10
given
a+4d=11
a+6d=7
subtract above equations
we get -2d=4
d=(-2)
put d=-2 in a+4d=11
then a=(19)
for 16th term a.p=a+15d
19+15(-2)
19-30
-11
a.p of 16th term is -11
Answered by AtharvSena
0

-11

Given: a+4d=11

           a+6d=7

Subtract above equations

we get -

2d=4

d=-2

put d=-2 in a+4d=11

then

a+4(-2)=11

a-8=11

a=11+8

a=19

for 16th term

A.P

a+15d

=19+15(-2)

=19-30

=-11

A.P of 16th term is -11

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