Edexcel A Level Mathematics June 2024
Exam Questions and Answers 100%
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1 + tan2θ - Answer>>= sec2θ
cot2θ + 1 = cosec2θ - Answer>>= cosec2θ
Sin2θ - Answer>>2sinθcosθ
Cos2θ - Answer>>cos²θ-sin²θ
2cos²θ-1
1-2sin²θ
Tan2θ - Answer>>2tanθ / (1 - tan²θ)
How do you write a rational number in a proof? - Answer>>a/b
What does y=|f(x)| do? - Answer>>Reflects values below the x-
axis in the x-axis
What does y=f(|x|) do? - Answer>>Reflects values of x≥0 in the
y-axis
Arithmetic sequence formula - Answer>>a₁+(n-1)d
Geometric sequence formula - Answer>>uₙ = arⁿ⁻¹
Convergent geometric series - Answer>>Convergent if |r|<1
where r is the common ratio
Periodic sequences - Answer>>Sequence is periodic if terms
repeat in a cycle
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