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If f(x)= 4-x, x

5x+4, 0

4x² -3x, 1

3x+4, x>=2

examine its differentiability at x=0,1,2

the diameter of a roller is 84 cm and its length is 120 cm. it takes 500 complete revolution to  move once over to level a playground. find the area of the playground in square m?

Find dy/DX when y=x^sinx+sin-1√x.

 

Please give me the solution of this problem. 

Solve the differential equation y’’+2ty’-4y=1, y(0)=y’(0)=0.