作者king911015 (早已放弃爱上你)
看板trans_math
标题[微分]
时间Mon Feb 5 23:34:30 2007
lim 1
〔----- - (cotX)^2 〕
x->0 X^2
Find the slope of the line tangent to the graph of the equation
sin(xy) = x^2 (cosy) at the point (2,π/2).
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