Mathematics A-Level
exact solutions
What exact solutions means in Mathematics A-Level, as defined for WJEC.
Definition of exact solutions
Check what you remember
Read the wording for your board, then hide it and explain exact solutions in your own words. Rough notes are fine. This is a self-check, with no mark or grade.
Reference: WJEC
Solutions stated in terms of logarithms, such as x = (ln b) / (ln a), rather than evaluated decimals.
Topics that use exact solutions
- Exponentials and logarithms (AS Unit 1: Pure Mathematics A) (WJEC A-Level)
Related terms
- ambient temperature baseline
- carrying capacity
- combining logarithms
- domain restrictions
- exponential growth
- exponential models
- fractional coefficients
- gradient and intercept
Using exact solutions in the exam
Check the command word and mark scheme for your exact question. After comparing your explanation with the reference, use the term in an answer on the linked topic. This practice does not predict an exam mark.
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