`-9/(sqrt(49))`

Find the value of x in the equation ((sqrt(324))/(sqrt(49)))((sqrt(676))/(sqrt(169)))((126)/(sqrt(81)))=x

Compute : sqrt(-49)(2+sqrt(-9)) .

Compute: (i) sqrt(-49)(2+sqrt(-9)) (ii) [2+sqrt(-25)]-[3-sqrt(-16)]+[1-sqrt(-9)] .

Evaluate: int 1/(sqrt(x^2-49))dx , x>0

The least number among (4)/(9), sqrt((9)/(49)) 0.45 and (0.8)^(2) is