Show that the progression 8,11,14,17,20....Is an AP.Find it\'s first term and the last term

Show that the progression 8,11,14,17,20....Is an AP.Find it\'s first t

1.	Show that the progression 8,11,14,17,20....Is an AP.Find it\'s first term and the last term
Answer» So last term = 8+(n-1)3 = 8+3n-3 = 5+3n Last term = a+ (n-1) d First term is mentioned = a (8) d is 3 in each case so it is in the form.of AP