Question

Question 3 Write the first five terms of the sequences whose nth term is an = 2n

Class X1 - Maths -Sequences and Series Page 180

Answer 1

$a_n=2n\\\\\\1st-term(a_1)=2(1)\\a_1=2\\\\2nd-term(a_2)=2(2)\\a_2=4\\\\3rd-term(a_3)=2(3)\\a_3=6\\\\4th-term(a_4)=2(4)\\a_4=8\\\\5th-term(a_5)=2(5)\\a_5=10$