If y=1/4u^4 , u=2/3x^3+5 then dy/dx=?...

If `y=1/4u^4` , `u=2/3x^3+5` then `dy/dx=?`

A

`(1)/(27) x^2 (2x^3 +15)^3`

B

`(2)/(27) x (2x^3 +5)^3`

C

`(2)/(27) x^2 (2x^3 +15)^3`

D

None of these

Verified by Experts

The correct Answer is:

C

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