Question

x^2n-1/n+1=....................
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Answer 1

Answer:

is becomes difficult to walk on a slippery road due to low friction. When we move on ice, it becomes difficult to walk due to low friction of ice.

2. We can not fix nail in the wood or wall if there is no friction. It is friction which holds the nail.

3. A horse can not pull a cart unless friction furnishes him a secure Foothold.

4. We can write on a paper or on a board.

5. Friction helps in applying the brakes.