What is the gradient of the curve at the point where ?

Answer and explanation

Correct answer: B.

  1. Step 1: .
  2. Step 2: At : .
Answer
.
Why not the others: is ; is at without the ; is the constant with its sign dropped; is at .

Practise more Differentiation.

Free questions with an explanation for every one, and full timed TMUA mock tests.