The expression √(1+tan²c) can be simplified using the trigonometric identity:
tan²c + 1 = sec²c
Therefore, the expression can be rewritten as:
√(1+tan²c) = √sec²c
The square root of sec²c is simply sec c.
So, √(1+tan²c) simplifies to sec c.
So the shirt reads:
“I’m sec c and I know it”
