The coefficient of \[{{x}^{39}}\] in the expansion of \[{{\left( {{x}^{4}}-\frac{1}{{{x}^{3}}} \right)}^{15}}\] is [MP PET 2001]

The coefficient of \[{{x}^{39}}\] in the expansion of \[{{\left( {{x}^

1.	The coefficient of \[{{x}^{39}}\] in the expansion of \[{{\left( {{x}^{4}}-\frac{1}{{{x}^{3}}} \right)}^{15}}\] is [MP PET 2001]
A.	-455
B.	-105
C.	105
D.	455
Answer» B. -105

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The coefficient of \[{{x}^{39}}\] in the expansion of \[{{\left( {{x}^{4}}-\frac{1}{{{x}^{3}}} \right)}^{15}}\] is [MP PET 2001]

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