摘要:​ AP频道为大家带来AP微积分函数解析:幂函数一文,希望对大家AP备考有所帮助。 1.Power Functions幂函数y=x( is a constant) (1)When =n(where n is a positive integer) When n is even, the function is also an even function(偶函数); When n is odd, the function is also an odd function(奇函数); (2)When = (where n is a positive integer) When n is even, the domain of the function is (0,+); When n is odd, th

 

AP频道为大家带来AP微积分函数解析:幂函数一文,希望对大家AP备考有所帮助。

1.Power Functions幂函数y=xμ(μ is a constant)

(1)When μ=n(where n is a positive integer)

When n is even, the function is also an even function(偶函数);

When n is odd, the function is also an odd function(奇函数);

(2)When μ= (where n is a positive integer)

When n is even, the domain of the function is (0,+∞);

When n is odd, the domain of the function is (-∞,+∞);

The following figure are the graphs of the functions when μ=-1, ,1,2.

2.Polynomial Functions多项式函数

多个幂函数进行加减乘运算即得到多项式函数,记为:

f(x)=a0xn+a1xn-1+a2xn-2+…+an-1x+an(n is a positive integer or zero)

n=1,linear function(一次函数),f(x)=kx+b(k≠0)

n=2,quadratic function(二次函数),f(x)=ax2+bx+c(a≠0)

n=3,cubic function(三次函数),f(x)=ax3+bx2+cx+d(a≠0)

3.Rational Functions有理函数

二个多项式函数进行除运算即得到Rational function,记为:

f(x)= (Q(x)≠0)[P(x) and Q(x) are polynomial functions]

以上就是关于“AP微积分函数解析:幂函数”的全部内容

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