Maths A-level OCR MEI (B). All Exam Questions and Correct Answers |
Graded A+ | 2025/2026 Update|
Quadratic Formula - x = -b ± √(b² - 4ac)/2a
Pythagorean Theorem - a²+b²=c²
(a^x)(a^y) - a^(x + y)
a^x / a^y - a^(x - y)
(a^x)^y - a^xy
x = a^n - n = logA(x)
logAx + logAy - logA(xy)
kloga(x) - loga(x^k)
straight line formula - (y - y1) = m(x-x1)
perpendicular gradients are... - negative reciprocals
General term of AP - Un = a + (n-1)d
General term of GP - Un = ar^n-1
, Sine rule - a/sinA = b/sinB = c/sinC
Cosine rule - a² = b² + c² - 2bcCosA
Triangle Area - 1/2 ab sinC
Cos^2A + Sin^2A= - 1
1+tan^2A= - sec^2A
cosec^2A - 1 + cot^2A
sin2A= - 2sinAcosA
cos2A= - cos^2A-sin^2A
tan2A= - 2tanA/1-tan^2A
circumference - 2πr
Area of a circle - πr²
Area of a trapezium - 1/2 (a+b) h
Volume of a prism - Area of cross section x length
Graded A+ | 2025/2026 Update|
Quadratic Formula - x = -b ± √(b² - 4ac)/2a
Pythagorean Theorem - a²+b²=c²
(a^x)(a^y) - a^(x + y)
a^x / a^y - a^(x - y)
(a^x)^y - a^xy
x = a^n - n = logA(x)
logAx + logAy - logA(xy)
kloga(x) - loga(x^k)
straight line formula - (y - y1) = m(x-x1)
perpendicular gradients are... - negative reciprocals
General term of AP - Un = a + (n-1)d
General term of GP - Un = ar^n-1
, Sine rule - a/sinA = b/sinB = c/sinC
Cosine rule - a² = b² + c² - 2bcCosA
Triangle Area - 1/2 ab sinC
Cos^2A + Sin^2A= - 1
1+tan^2A= - sec^2A
cosec^2A - 1 + cot^2A
sin2A= - 2sinAcosA
cos2A= - cos^2A-sin^2A
tan2A= - 2tanA/1-tan^2A
circumference - 2πr
Area of a circle - πr²
Area of a trapezium - 1/2 (a+b) h
Volume of a prism - Area of cross section x length
