The rth term in the expansion of (3x^2+\dfrac{2}{x})^{10} is ^ {10}_r(3x^2)^{10-r}(\dfrac{2}{x})^{r}. For which value of r is the term independent of x?

AM-482

General term of a binomial expansion

A Math · Secondary 3 · Medium · General term of a binomial expansion

The

r

th term in the expansion of

(3x^2+\dfrac{2}{x})^{10}

^ {10}_r(3x^2)^{10-r}(\dfrac{2}{x})^{r}

. For which value of

r

is the term independent of

x

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