Find the exact value of x where the tangent line to the graph y=3e^x+2x is parallel to the line 11x-y=7.?
回答 (1)
2015-10-22 11:27 pm
Sol
y=3e^x+2x
y’=3e^x+2
when x=a
y’(a)=3e^a+2=11
3e^a=9
e^a=3
a=ln3
y=3e^x+2x
y’=3e^x+2
when x=a
y’(a)=3e^a+2=11
3e^a=9
e^a=3
a=ln3
收錄日期: 2021-04-29 12:04:28
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