Question

two A.p are given 9,7,5.....and 24,21,18.....if nth term of both the progression are equal than find the value of n and nth term ​

Answer 1

Answer:

10  

99

 

​  

a  

2r

​  

=  

r=1

∑

10  

99

 

​  

(a  

2r−1

​  

+d)=  

r=1

∑

10  

99

 

​  

a  

2r−1

​  

+(10  

99

)d

or 10  

100

=10  

99

+10  

99

.d

∴ 10-1 = d or d= 9

Step-by-step explanation:

Answer 2

Step-by-step explanation:

d=9 hopefully u satisfy with this answer