Question

Derivative of u.v is given by- *

(i) u.v' - v.u'

(ii) u.v' + v'.u

(iii) u.v' + v. u'

(iv) u.v + u'.v'​

Answer 1

Answer:

3) u.v' + v.u'

Step-by-step explanation:

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Answer 2

Step-by-step explanation:

Then u/ = 2x and v/ = cos(x), so the derivative of uv is x2 cos(x) + 2xsin(x).