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Obtain the differential of the following...

Obtain the differential of the following :
`(i) (x-1) (2x+5)`
`(ii) (9x^(3)-8x+7)(3x^(2)+5)`

Text Solution

Verified by Experts

The correct Answer is:
`(KP)/(sqrt(2)y^(3))(-hat(i)-2hat(j))`
`vec(E)_(x)=(-K(P cos 45^(@)))/y^(3) hat(i)`
`vec(E)_(y)=(-2x(P sin 45^(@)))/y^(3) hat(j)`
`vec(E)_(P)=(KP)/(sqrt(2)y^(3))[-hat(i)-2hat(j)]`
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