So the inverse of: 2x+3 is: (y−3)/2The inverse is usually shown by putting a little "-1" after the function name, like this:f-1(y)We say "f inverse of y"So, the inverse of f(x) = 2x+3 is written:f-1(y) = (y-3)/2...
-z 1/(x+y)⋅(-z)=1/(2x-y)⋅(-y) (-z) Simplify each element of the matrix [1/2,1/3,-1/2⋅(-2)] rw yw 4 (-z) w ∫(e^x)/(-1/(x+9))=(9/(2a))/(1/(a-1))= 反馈 收藏
选项 A,y = x²不是一一映射,例如当 y = 4 时,x = 2 或 x = -2,所以没有反函数。选项 B,y = |x|也不是一一映射,当 y = 2 时,x = 2 或 x = -2,没有反函数。选项 C,y = 2x 是一一映射,有反函数。选项 D,y = sinx 不是一一映射,一个 y 值对应多个 x 值,没有反函数。
This equation does not describe xx as a function of yy because there are two solutions to this equation for every y>0y>0. The problem with trying to find an inverse function for f(x)=x2f(x)=x2 is that two inputs are sent to the same output for each output y>0y>0. The ...
Which is the correct inverse of the one-to-one function: {eq}\displaystyle f(x)=\frac{3x-1}{x+2} \\ \displaystyle (a)f^{-1}(x)=-\frac{2x-1}{x-3}, x \neq 3 \\ \displaystyle (b)f^{-1}(x)=\...
In order to find the inverse function, we have to first interchange the variables x and y. After interchanging the variables, we need to solve for y. Lastly, we need to simplify.Answer and Explanation: We are given the function y=2x. We want to find the inverse of the fu...
( 2x+2y=80) , ( y=x+8) 相关知识点: 试题来源: 解析 Find the ( AX=B) from the system of equations. ( [(array)(cc)2& 2 -1& 1(array)]⋅ [(array)cx y(array)]=[(array)c80 8(array)]) Find the inverse of the coefficientmatrix of ( [(array)(cc)2& 2 -1& 1(array)...
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An inverse function reverses the method of a function. If, in algebra, f(x) = 2x, then inverse function of f(x) will be a function say f(y) = y/2. Graph, properties, types at BYJU’S
• example : Find the inverse of y = 3x + 2 1. y = 3x + 2 2. x = 3y + 2 ( interchange x and y ) 3. ( solve for ) So, • example : Find the inverse of f (x) = 4 − 2x so, • Does every function have an inverse function? • To answer this question, ...