The Total solution for NCERT class 6-12
an = 2n
Given nth term, an =2n
On substituting n =1, 2, 3, 4, 5, we get
a1 = 21 =2
a2 = 22 =4
a3 = 23 =8
a4 = 24 =16
a5 = 25 =32
Hence, the requiredterms are 2, 4, 8, 16, and 32.