NCERT Exemplar Solutions
Class 11 - Mathematics - Chapter 9: SEQUENCE AND SERIES
Fill in the Blanks

Question. 27

For \(a, b, c\) to be in G.P. the value of \(\dfrac{a-b}{b-c}\) is equal to ____.

Answer:

a/b or b/c

Question. 28

The sum of terms equidistant from the beginning and end in an A.P. is equal to ____.

Answer:

First term + last term

Question. 29

The third term of a G.P. is 4, the product of the first five terms is ____.

Answer:

4⁵