1
Question
The nth term of an A.P is 7−4n. Find its common difference.
Open in App
Solution
Tn=7−4n
T1=7−4(1)=3, T2=7−4(2)=−1, T3=7−4(3)=−5
d=T3−T2=T2−T1
=−5−(−1)=−1−3
d=−4=−4
Common difference =−4.
Tn=7−4n
T1=7−4(1)=3, T2=7−4(2)=−1, T3=7−4(3)=−5
d=T3−T2=T2−T1
=−5−(−1)=−1−3
d=−4=−4
Common difference =−4.
Suggest Corrections
0
Similar questions