Find `sqrt(28+sqrt(400+sqrt(1681)))`

Simplify (i) 3 sqrt ( 45) - sqrt (125) + sqrt (200) - sqrt(50) (ii) ( 2 sqrt ( 30 ))/( sqrt ( 6)) - ( 3 sqrt(140))/(sqrt ( 28)) + (sqrt(55))/(sqrt(99)) (iii) sqrt (72) + sqrt(800) - sqrt ( 18 )

Show that each of the following progression is an AP. Find the common difference and the next term of each. (i) sqrt(7), sqrt(28), sqrt(63), …. (ii) sqrt(18), sqrt(50), sqrt(98),

sqrt(sqrt(28-16sqrt(3)))

If sqrt(784) = 28 , find the value of : (i) sqrt(7.84) + sqrt(78400) (ii) sqrt(0.0784) + sqrt(0.000784)

Find sqrt(625),sqrt(576),sqrt(49) and verify that sqrt(625) ne sqrt(576)+sqrt(49)

Evaluate : ( sqrt(2) - sqrt(3) + sqrt(5) )times ( sqrt(2) + sqrt(3) + sqrt(5) )