Question

(2/√10-3/2√10+√10/5):√2/5=

Answer 1

2/rad10 = 2rad10/10 = rad10/5

3/2rad10 = 3rad10/20

5/rad2 = 5rad2/2

(rad10/5 - 3rad10/20 + rad10/5) • 5rad2/2 =

(4rad10-3rad10+4rad10)/20 • 5rad2/2 =

5rad10/20 • 5rad2/2 =

rad10/4 • 5rad2/2 =

10rad5/8 =

5rad5/4