Provide the proper response.If we decide to use the substitution u = x2 + e, then which of the following might be necessary?i) du = 2x dxii)x2 = u - eiii) du = 2ex dxiv) du = 
dx
A. Both i and iv
B. Both ii and iii
C. Both i and ii
D. Only i
Answer: C
Mathematics
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