Marking brainliest I’m sorry but I just don’t know what to say back? Any tips? I’m new to talking to guys since I’m awkward

Find the given elements if matrix d:

Provide an example of a trigonometric function and describe how it is transformed from the standard trigonometric function f(x) = sin x, f(x) = cos x, or f(x) tan x using key features.

Any is very appreciated! (picture is provided below)not sure how to do this at all won't lie