square root 40 = k square root 10 find the value of k.
answer is 2
solution- since sqrt(a) / sqrt(b) = sqrt (a/b)
then k = sqrt(40/10) = sqrt (4) =2
sqrt40 = ksqrt10
sqrt(4 x 10) = ksqrt10
2sqrt10= ksqrt10
2=k
