Flag 10 grade maths> Show that 9 n cannot end with 2 for any n...
question mark

Show that 9n cannot end with 2 for any natural number n.

Sanskar Pathak , 9 Years ago
Grade 9
anser 1 Answers
Harsh Patodia

Last Activity: 9 Years ago

9n=32n= (2+1)2n
Using binomial expansion (a+b)n = nC0 an + nC1an-1b1. . . . . + nCn bn
Above will be ending in odd number or you can show by taking some values of n and see the pattern.

Provide a better Answer & Earn Cool Goodies

star
LIVE ONLINE CLASSES

Prepraring for the competition made easy just by live online class.

tv

Full Live Access

material

Study Material

removal

Live Doubts Solving

assignment

Daily Class Assignments


Ask a Doubt

Get your questions answered by the expert for free