![If A = begin{bmatrix}1 &lambda & 2 1 & 2 & 5 2 & 1 & 1end{bmatrix} is not invertible then lambda = ? If A = begin{bmatrix}1 &lambda & 2 1 & 2 & 5 2 & 1 & 1end{bmatrix} is not invertible then lambda = ?](https://haygot.s3.amazonaws.com/questions/1552583_1705785_ans_c72af12dc7be40c0960490bcb4adb235.jpg)
If A = begin{bmatrix}1 &lambda & 2 1 & 2 & 5 2 & 1 & 1end{bmatrix} is not invertible then lambda = ?
![SOLVED: ( Part 3)/(1) 1. Determine whether the following functions are invertible or not and if a function is invertible, then find the rule of the inverse (f^-1(x)) using appropriate mathematical technique. SOLVED: ( Part 3)/(1) 1. Determine whether the following functions are invertible or not and if a function is invertible, then find the rule of the inverse (f^-1(x)) using appropriate mathematical technique.](https://cdn.numerade.com/ask_images/1d4457d2cb90445e89054ab9a98b2e70.jpg)
SOLVED: ( Part 3)/(1) 1. Determine whether the following functions are invertible or not and if a function is invertible, then find the rule of the inverse (f^-1(x)) using appropriate mathematical technique.
![linear algebra - Why can all invertible matrices be row reduced to the identity matrix? - Mathematics Stack Exchange linear algebra - Why can all invertible matrices be row reduced to the identity matrix? - Mathematics Stack Exchange](https://i.stack.imgur.com/CPHBu.png)
linear algebra - Why can all invertible matrices be row reduced to the identity matrix? - Mathematics Stack Exchange
![SOLVED: Suppose that f is an invertible function from Y to Z and g is an invertible function from X to Y . Show that the inverse of the composition f ∘ SOLVED: Suppose that f is an invertible function from Y to Z and g is an invertible function from X to Y . Show that the inverse of the composition f ∘](https://cdn.numerade.com/ask_previews/21aa2119-ecde-4f7f-bd5c-71ecad153625_large.jpg)