2008
Mathematics
67ca00ce0c643c71d77dee1f
Find the derivative of y=x7 −x7/ x4
A.
x(x2 -1)
B.
3x(x2 -1)
C.
3x2 -1
D.
7x6 -5x4
Correct Answer: 3x2 -1
Explanation
y=(x7 -x5 )/x4. y=x7 /x4 ÷ x5 /x4. y=x3 -x. dy/dx=3x2 -1
y=(x7 -x5 )/x4. y=x7 /x4 ÷ x5 /x4. y=x3 -x. dy/dx=3x2 -1THIS WEEK's
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