Limit of (cos(5x)-cos(x))/x^2 as x approaches 0,x趨近於零時,(cos5x-cosx)/x^2會等於多少
L'Hopital's Rule 羅必達法則
L'Hopital's Rule 羅必達法則:
lim f(x)/g(x) = lim f'(x)/g'(x)
一般高中解法(和差化積)
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Limit of (cos(5x)-cos(x))/x^2 as x approaches 0,x趨近於零時,(cos5x-cosx)/x^2會等於多少
L'Hopital's Rule 羅必達法則
L'Hopital's Rule 羅必達法則:
lim f(x)/g(x) = lim f'(x)/g'(x)
一般高中解法(和差化積)
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