MA 115 Final Exam | Questions and Answers | NEWEST 2025/2026 Update | 100% Correct

MA 115 Final Exam | Questions and
Answers | NEWEST 2025/2026 Update |
100% Correct
Radian Measure

θ= s/r

Degrees to Radians

Multiply by π/180°

Radians to Degrees

Multiply radians by 180°/π

Length of Circular Arc

S=rθ

Linear Speed

v=s/t

Angular Speed

w=θ/t, where θ is in radians

Cosecant θ

hypotenuse/opposite

Secant θ

hypotenuse/adjacent

Cotangent θ

adjacent/opposite

Quotient Identities: tan θ

, sin θ/cos θ

Quotient Identities: cot θ

cos θ/sin θ

Pythagorean Identities: Sin....

sin²θ+cos²θ=1

Pythagorean Identities: Tan....

tan²θ+1=sec²θ

Pythagorean Identities: Cot

cot²θ+1=csc²θ

Cofunction Identities: sin θ

cos(90°-θ)

Cofunction Identities: cos θ

sin(90°-θ)

Cofunction Identities: tan θ

cot(90°-θ)

Cofunction Identities: csc θ

sec(90°-θ)

Cofunction Identities: sec θ

csc(90°-θ)

Cofunction Identities: cot θ

tan(90°-θ)

Definition of Trigonometric Functions: sin θ

y/r