记y=f(t)=log2(t),t=g(x)=x^2+5x+6,
先求定义域 x^2+5x+6>0,(x+3)(x+2)>0,x-2
t=g(x)=x^2+5x+6 它的对称轴为x=-2.5,,当x
函数y=log2(x²+5x+6) 【2为底数】单调减区间为_______
函数y=log2(x²+5x+6) 【2为底数】单调减区间为_______
数学人气:862 ℃时间:2020-01-25 21:00:07
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