Answer and explanation

Correct answer: B. 10

  1. Step 1: Factorise: , which tends to . Answer: 10. Why not the others: 5: gives instead of . 25: gives . 0: treats the form as 0/0 = 0.

Practise more Calculus, algebra, series and probability.

Free questions with an explanation for every one, and full timed Stúdentspróf (Iceland) mock tests.