Could someone help me solve this? I tried an integral calculator online but it gave me a solution with something called sec. I don't know what sec is, I haven't learned about
Solved Using any Integral Calculator, plot several periods | Chegg.com
Symbolab Blog: Advanced Math Solutions – Integral Calculator, integration by parts, Part II
Integral Calculator - Brand-new feature: The Integral Calculator now offers alternatives for various steps. Have you ever been confused by a difficult substitution or a reduction formula that you don't know? Now
How to Use an Integral Calculator: 7 Steps (with Pictures)
calculus - Evaluate integral limits using the antiderivatives expression, with a calculator - Stack Overflow