Question

If xy=0 Show that either 2=0 xy ER y=0 where x,y∈ R​​

Answer 1

Question

Explain why sportsmen use shoes with spikes

Answer

Spikes increase the surface of the shoes & make it rough which results in an increase in friction. This helps to have more grip on the floor and chances to slip reduces. This makes it easy for sportsmen to walk or run as their grip on the ground increases

Answer 2

Answer:

Spikes increase the surface of the shoes & make it rough which results in an increase in friction. This helps to have more grip on the floor and chances to slip reduces. This makes it easy for sportsmen to walk or run as their grip on the ground increases

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