Math, asked by vyankateshpotdar411, 2 days ago

if for an A.P., d= – 4, then t20 – t15= ? ​

Answers

Answered by tathagatabanerjee50
0

Step-by-step explanation:

Given that,

Common difference=d=11

first term=a=a

number of the term=n

T

n

=a+(n−1)d

T

17

=a+(17−1)11

=a+(16)11

=a+176

T

n

=a+(n−1)d

T

15

=a+(15−1)11

=a+(14)11

=a+154

then,

T

17

−T

15

=(a+176)−(a+154)

=a+176−a−154

=22

Answered by LVMurali
0

Answer:

its here for you

Step-by-step explanation:

mark Brainlist if it find helpful

Attachments:
Similar questions