Question

a) | S.D of first in natural numbers is 2, then find 'n​

Answer 1

Answer:

n=7

Step-by-step explanation:

first natural numbers

2=√n^2-1/12

squaring on both sides

(2)^2=(√n^2-1/12)^2

4=n^2-1/12

4*12=n^2-1

48=n^2-1

n^2=48+1=49

n=√49

n=7