TY - BOOK AU - Maths Solutions TI - 50 challenging calculus problems with solutions: indefinite integrals SN - 978-8747-11095-3 AV - GC QA 305 .M38 2021 c.1 PY - 2021/// CY - USA PB - [publisher is not identified] KW - CALCULUS N1 - Useful Formulas -- Partial Franction -- Exponents and Logarithms -- Trigonometric Fundctions -- Mixed Problems ER -