# Do I need permission to copy school questions to my book?

My main character is going to a highly advanced school but I have no idea how to make up hard questions. I'm terrible at math, so I was wondering do I need permission to copy my older sister's college questions. (Not sure if this question was already posted.)

So for the case your very hard questions, I searched for "AP calculus question" and clicked the first link. There, I found this:

The limit of a function may be found by using algebraic manipulation, alternate forms of trigonometric functions, or the squeeze theorem.

and

The concept of a limit can be extended to include one-sided limits, limits at infinity, and infinite limits.

Finding these sentences is easy. Putting them as-is into your book may not be ok. But that's fine. You don't want them in your book. Instead, try something like this:

She picked up the practice test with a smile, which quickly faded. "Limits, sure. Algebraic what? Squeeze theorem? Limits at infinity?" Turning to her mother, she whispered "I'm not ready."

or

She picked up the practice test. Her smile widened. "Squeeze theorem! I can do that!"

You don't need the questions. You just need a few words. Enough that people who have taken those classes will recognize them, and people who haven't will think "wow, that sure sounds hard."