1.

Differentiate (x^(2)-5x+8)(x^(3)+7x+9) in three ways mentioned below : (i) by using product rule (ii) by expanding the product to obtain a single polynomial. (iii) by logarithmic differentiation. Do they all give the same answer?

Answer»


Answer :`5x^(4)-20X^(3)+45X^(2)-52x+11`


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