This week we learned this.....
- How to Expand
- How to Condense
- How to take a derivative of a natural log
Expand :
lnx^2y/10
=2 ln x + ln y - ln 10
Condense :
3 ln ( x + 2 ) - ln ( x - 1 )
= ln ( x + 2 ) ^3 / ( x - 1 )
Taking a Derivative :
d / dx ln u = 1 / u * d (u)
d / dx ln 2 x
=1 / 2x * 2
=1 / x
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