If the constant term in the expansion of ${\left( {3{x^3} - 2{x^2} + {5 \over {{x^5}}}} \right)^{10}}$ is 2k.l, where l is an odd integer, then the value of k is equal to:

Question

If the constant term in the expansion of

${\left( {3{x^3} - 2{x^2} + {5 \over {{x^5}}}} \right)^{10}}$ is 2^k.l, where l is an odd integer, then the value of k is equal to:

Solution

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