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OCR MEI A Level Mathematics Formula Guide Exam Study Guide 2026/2027 Accurate Questions with Correct Detailed Solutions || 100% Guaranteed Pass Newest Version

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OCR MEI A Level Mathematics Formula Guide Exam Study Guide 2026/2027 Accurate Questions with Correct Detailed Solutions || 100% Guaranteed Pass Newest Version

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OCR MEI A-Level Maths Formulas (not given)
Study online at https://quizlet.com/_gfnsq9

1. b²-4ac<0 no real roots

2. b²-4ac=0 1 real root (repeated root)

3. b²-4ac>0 2 real roots

4. Sine rule (side length) a/sinA = b/sinB = c/sinC

5. Sine rule (angle) sinA/a = sinB/b = sinC/c

6. Cosine rule (angle) CosA = (b² + c² - a²) / 2bc

7. Cosine rule (side a² = b² + c² - 2bcCosA
length)

8. Area of triangle 1/2abSinC

9. Arc length θr

10. Sector area ½θr²

11. nth term for arith- a+(n-1)d
metic sequence

12. nth term for geomet- ar^n-1
ric sequence

13. domain of arcsinx -1 dx d1

14. range of arcasinx -π/2 dy dπ/2
-90 dy d90

15. domain of arccosx -1 dx d1

16. range of arccosx

1/5

, OCR MEI A-Level Maths Formulas (not given)
Study online at https://quizlet.com/_gfnsq9

0 dy dπ
0 dy d180

17. domain of arctanx all real numbers

18. range of arctanx -π/2 < y < π/2
-90 < y < 90

19. tanθ = sinθ/cosθ

20. sin²5+ cos²5= 1

21. cosec²5= 1 + cot²5

22. sec²5= 1 + tan²5

23. sin2x = 2sinxcosx

24. cos2x = cos²x - sin²x
2cos²x - 1
1 - 2sin²x

25. tan2x = 2tanx / 1-tan²x

26. logb(x) + logb(y) = logb(xy)

27. logb(x) - logb(y) = logb(x/y)

28. logb(x^y) = ylogb(x)

29. logb(b^x) = x

30. logb(1) = 0

31. dy/dx of a^kx = k(lna)a^kx

2/5

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