CBSE 10th Class past year question paper
Year 2019
SET 1, Code Number- 30/2/1
Question number – 3
Lost your password? Please enter your email address. You will receive a link and will create a new password via email.
Become a Mathematics wizard and get above
A.P is 1/ a, 3 -a /3a, 3 -2a/ 3a
Common difference= second term- first term
= { ( 3 – a ) / 3a } – 1/a
= ( 3 – a – 3 ) / 3a
= -1/3