Please answer parts a & b

a$)$ Find the transformation matrix from $xYZ$ to the axes $xyz$ shown.

b$)$ If in the original frame the stress tensor has components $3,-4,5$

$-4,7,11$

$5,11,8,$ find its components in the

new axes. Note: you'll have to create orthonormal new frame from given information $($frame is denoted

by lower case letters x y z$)$