Verify `(3times7) times5=3times(7times5)`

Verify: 18times[7+(-3)=[18times7]+[18times(-3)]

Is [(-5)times2)]times3 = (-5)times[(2times3)] ?

Find 5times9times2times2times3times5 using properties.

Find the Product : -2times-3times-4times-5times-6times0

Verify -30times[13+(-3)]=[(-30)times13)+(-30)times(-3)]

Find the product : -1times-5times-2times-3

Solve: 1.7times3

5times3times0 =........

The time constant of an inductance coil is 5 xx 10^(-3) sec . When a 90 ohm resistance is joined in series , the time constant becomes 0.5 xx 10^(-3) sec . The inductance and resistance of the coil are ,

Solve: 7times2.7