Differentiation (G12)
Q: Given that y = 2x^3 - 4/x^2, find dy/dx.
This one's worth up to 5 points
Essay answers are graded instantly by AI — in your own words, not exact wording. Multiple-choice only ever earns 1 point; this question can earn you 5.
Free accounts can't answer essay questions yet — you're missing out on the biggest points on the board every quiz.
Upgrade to Pro — unlock AI-graded essaysDid You Know?
(a) Step-up and step-down. (b)(i) V₁I₁ = V₂I₂ => V₂ = (2.4 × 0.15)/0.2 = 1.8V. (ii) Power output = V₂I₂ = 1.8 × 0.2 = 0.36W. (iii) Step-down transformer because V₂ < V₁. (c) An alternating current in the primary coil produces a changing magnetic field, which induces a voltage in the secondary coil.
Social Sharing!
Share your knowledge:
Zambia