Answer and explanation

Correct answer: A.

  1. Step 1: so ; so . Step 2. (also ). Answer: 2. Why not the others: The other results ignore the logarithms or stop at the quotient 9 without taking its log.

Practise more Algebra, Calculus, Geometry and Probability.

Free questions with an explanation for every one, and full timed NMT National Multi-Subject (Ukraine) mock tests.

Evaluate log 3 81- log… | NMT National Multi-Subject (Ukraine)