OCR MEI A-Level Mathematical Formulae
with correct answer 2025/2026
(a^x)^y - correct answersa^xy
a^x * a^y - correct answers= a^(x+y)
a^x / a^y - correct answersa^x-y
Arc length (angle is in RADIANS) - correct answerss=rθ
Area of a circle - correct answersπr²
Area of a sector (angle is in RADIANS) - correct answersA = 1/2 r^2 θ
Area of a trapezium - correct answers1/2(a+b)h, where a and b are the lengths of the parallel
sides and h is their perpendicular separation.
Area of a triangle (with 2 side lengths and the angle between them) - correct answers1/2 ab
sinC
Arithmetic Progression general term - correct answersun = a + (n-1)d
Circumference of a circle - correct answers2πr or πd
with correct answer 2025/2026
(a^x)^y - correct answersa^xy
a^x * a^y - correct answers= a^(x+y)
a^x / a^y - correct answersa^x-y
Arc length (angle is in RADIANS) - correct answerss=rθ
Area of a circle - correct answersπr²
Area of a sector (angle is in RADIANS) - correct answersA = 1/2 r^2 θ
Area of a trapezium - correct answers1/2(a+b)h, where a and b are the lengths of the parallel
sides and h is their perpendicular separation.
Area of a triangle (with 2 side lengths and the angle between them) - correct answers1/2 ab
sinC
Arithmetic Progression general term - correct answersun = a + (n-1)d
Circumference of a circle - correct answers2πr or πd
