![r - How to get expect_equal() function (package testthat) work with rmarkdown files? - Stack Overflow r - How to get expect_equal() function (package testthat) work with rmarkdown files? - Stack Overflow](https://i.stack.imgur.com/jabHc.png)
r - How to get expect_equal() function (package testthat) work with rmarkdown files? - Stack Overflow
![SOLVED: (1 point) Let f : R 4 R3 be defined by f(x) = (x, 7x2,-Sx) . Is f a linear transformation? a. f(x + y) = <X+y,7(x^2+y^2+2xy),-Sx-5y> f(x) + f(y) = < SOLVED: (1 point) Let f : R 4 R3 be defined by f(x) = (x, 7x2,-Sx) . Is f a linear transformation? a. f(x + y) = <X+y,7(x^2+y^2+2xy),-Sx-5y> f(x) + f(y) = <](https://cdn.numerade.com/ask_images/2558b6eae1d9485ca48aead85e97b1a6.jpg)
SOLVED: (1 point) Let f : R 4 R3 be defined by f(x) = (x, 7x2,-Sx) . Is f a linear transformation? a. f(x + y) = <X+y,7(x^2+y^2+2xy),-Sx-5y> f(x) + f(y) = <
![names do not match previous names" & "length of 'dimnames' [2] not equal to array extent" in r - Stack Overflow names do not match previous names" & "length of 'dimnames' [2] not equal to array extent" in r - Stack Overflow](https://i.stack.imgur.com/KhQ6G.png)