Easy -1.2 This is a straightforward application of basic logarithm laws requiring only recall of log_a(a^n) = n. With just 2 marks and direct substitution yielding 5 + (-1) = 4, it requires no problem-solving or insight, making it easier than average but not trivial since students must recognize the logarithm properties.
Question 3:
3 | Correctly applies a single law of
logs with either term | AO1.1a | M1 | 1
log (a3) + log =3 + (–1)
a a
a
= 3 – 1
= 2
States correct final answer
(NMS scores full marks) | AO1.1b | A1
Total | 2