1) The sum of n terms of two A.P's
are in the ratio (2n+1): (2n-1). Find the
ratio of their 10th terms
2) The sum of first n terms of the AP:3, 11/2 ,8 is equal to the (2n)th terms of the
A.P : 33/2 ,57/2, 81/2. Calculate the value of n
3) The radius of a circle is increased so
that its circumference is increased by 5%.
Then find the
percentage of increase
in the area of circle.
Answers
Answered by
0
Answer:
Ok here is your answer
Step-by-step explanation:
Answered by
0
Answer:
1)-6
2)10
these answers are just for the first part given in ur whole question
Step-by-step explanation:
Similar questions