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A level maths formulae Exam 2025/2026 Questions With Completed & Verified Solutions.

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A level maths formulae Exam 2025/2026 Questions With Completed & Verified Solutions.

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A level maths formulae

1 + cot^2x = - ANS cosec^2x
\1 + tan^2x = - ANS sec^2x
\1 radian - ANS 180/π
\2π - ANS 360 degrees
\arc length - ANS l = rθ
\area of sector - ANS 1/2 r2 θ
\area of segment - ANS
\arithmetic sequence - ANS
\cos(180 - θ) - ANS -cosθ
\cos(2π - θ) - ANS cosθ
\cos(A + B) = - ANS cosAcosB-sinAsinB
\cos(π - θ) - ANS -cosθ
\cos(π + θ) - ANS -cosθ
\cos^2x + sin^2x - ANS = 1
\cos2A = - ANS cos^2A-sin^2A
\cos2A = (in terms of cosA only) - ANS 2cos^2A - 1
\cos2A = (in terms of sinA only) - ANS 1 - 2sin^2A
\cos30 - ANS √3/2
\cos45 - ANS √2/2
\cos60 - ANS 1/2
\cosecx - ANS 1/sinx
\cosπ/3 - ANS 1/2
\cosπ/4 - ANS √2/2
\cosπ/6 - ANS √3/2
\cotx - ANS 1/tanx
\cotx (in terms of sin and cos) - ANS cosx/sinx
\f'(x) first principals - ANS f(x + h) - f(x) / h
\f(x) = e^kx - ANS f'(x) = ke^kx
\geometric sequence - ANS
\if f(x) = e^x - ANS f'(x) = e^x
\range of y=cosecx - ANS y ≥ 1 or y ≤ -1
\range of y=secx - ANS y ≥ 1 or y ≤ -1
\secx - ANS 1/cosx
\sin(180 - θ) - ANS sinθ
\sin(2π - θ) - ANS -sinθ
\sin(A + B) = - ANS sinAcosB + cosAsinB
\sin(π - θ) - ANS sinθ
\sin(π + θ) - ANS -sinθ
\sin2A = - ANS 2sinAcosA
\sin30 - ANS 1/2

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