Maths (Higher paper)Questions And Answers 2025 \2026
Sine rule for angles - CORRECT ANSWER-SinA/a = SinB/b = SinC/c
Cosine rule - CORRECT ANSWER-a^2 = b^2 + c^2 - (2bc x CosA)
Quadratic Formula - CORRECT ANSWER-x = -b ± √(b² - 4ac)/2a
Median formula - CORRECT ANSWER-- (n+1)/2 n= no. of numbers in the
sample or total frequency.
- Use cumulative frequency to work out which class the median is in,
add the frequency onto the next one.
- Find the difference between the CF of the class above the one it's in,
and the median. Divide this by the frequency of the class it's in. Multiply
this by the class width - that's how much you have to go into the class.
The median is that answer added onto the lower bound of the class it's
in.
, - If all values are given, put into ascending order and cross off inwards
to find median.
Area of a sector - CORRECT ANSWER-Angle/360 x πr²
Lower Quartile formula - CORRECT ANSWER-(n + 1)/4 (th value) (n= no.
of numbers in the sample )
Upper Quartile formula - CORRECT ANSWER-3(n+1)/4 (th value)
Larger IQR implies... - CORRECT ANSWER-Less reliable data.
Fibonacci sequence - CORRECT ANSWER-A sequence where each
number is the sum of the previous two.
The nth term of a sequence is xn + y. Find the first two terms. -
CORRECT ANSWER-n=1 first, then n=2 and so on.
Is ... a term in this sequence? - CORRECT ANSWER-Use algebra and
solve to find n (using the previous expression). If it's a whole number,
yes it's in the sequence.
Sine rule for angles - CORRECT ANSWER-SinA/a = SinB/b = SinC/c
Cosine rule - CORRECT ANSWER-a^2 = b^2 + c^2 - (2bc x CosA)
Quadratic Formula - CORRECT ANSWER-x = -b ± √(b² - 4ac)/2a
Median formula - CORRECT ANSWER-- (n+1)/2 n= no. of numbers in the
sample or total frequency.
- Use cumulative frequency to work out which class the median is in,
add the frequency onto the next one.
- Find the difference between the CF of the class above the one it's in,
and the median. Divide this by the frequency of the class it's in. Multiply
this by the class width - that's how much you have to go into the class.
The median is that answer added onto the lower bound of the class it's
in.
, - If all values are given, put into ascending order and cross off inwards
to find median.
Area of a sector - CORRECT ANSWER-Angle/360 x πr²
Lower Quartile formula - CORRECT ANSWER-(n + 1)/4 (th value) (n= no.
of numbers in the sample )
Upper Quartile formula - CORRECT ANSWER-3(n+1)/4 (th value)
Larger IQR implies... - CORRECT ANSWER-Less reliable data.
Fibonacci sequence - CORRECT ANSWER-A sequence where each
number is the sum of the previous two.
The nth term of a sequence is xn + y. Find the first two terms. -
CORRECT ANSWER-n=1 first, then n=2 and so on.
Is ... a term in this sequence? - CORRECT ANSWER-Use algebra and
solve to find n (using the previous expression). If it's a whole number,
yes it's in the sequence.
