A) 5
B) 6
C) 7
D) 8
Correct Answer: C
Solution :
Given expression \[=2\,[{{x}^{5}}+{{\,}^{5}}{{C}_{2}}{{x}^{3}}{{\{{{({{x}^{3}}-1)}^{1/2}}\}}^{2}}+{{\,}^{5}}{{C}_{4}}x{{\{{{({{x}^{3}}-1)}^{1/2}}\}}^{4}}]\] = \[2[{{x}^{5}}+10{{x}^{3}}({{x}^{3}}-1)+5x{{({{x}^{3}}-1)}^{2}}]\] = \[5{{x}^{7}}+10{{x}^{6}}+{{x}^{5}}-10{{x}^{4}}-10{{x}^{3}}+5x\], which is a polynomial of degree 7.You need to login to perform this action.
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