Math 113 Exam 1 questions well
answered graded A+ 2025/2026
even - correct answer ✔✔f(-x) = f(x)
odd - correct answer ✔✔f(-x) = -f(x)
disc formula - correct answer ✔✔A(x)= πr^2; use when Reimann sums and axis of rotation are
perpendicular
shell formula - correct answer ✔✔A(x)= 2πrh; use when Riemann sums and axis of rotation are
parallel
sin^2(x) (half angle) - correct answer ✔✔(1/2)(1-cos(2x))
cos^2(x) (half angle) - correct answer ✔✔(1/2)(1+cos(2x))
sin^2(x) - correct answer ✔✔1-cos^2(x)
cos^2(x) - correct answer ✔✔1-sin^2(x)
tan^2(x) - correct answer ✔✔sec^2(x)-1
sec^2(x) - correct answer ✔✔1+tan^2(x)
answered graded A+ 2025/2026
even - correct answer ✔✔f(-x) = f(x)
odd - correct answer ✔✔f(-x) = -f(x)
disc formula - correct answer ✔✔A(x)= πr^2; use when Reimann sums and axis of rotation are
perpendicular
shell formula - correct answer ✔✔A(x)= 2πrh; use when Riemann sums and axis of rotation are
parallel
sin^2(x) (half angle) - correct answer ✔✔(1/2)(1-cos(2x))
cos^2(x) (half angle) - correct answer ✔✔(1/2)(1+cos(2x))
sin^2(x) - correct answer ✔✔1-cos^2(x)
cos^2(x) - correct answer ✔✔1-sin^2(x)
tan^2(x) - correct answer ✔✔sec^2(x)-1
sec^2(x) - correct answer ✔✔1+tan^2(x)
