Multiple choice general knowledge math & puzzles

Solve y = x^3+(sqrt5) Note: Differentiate with respect to "x" (sqrt is Square root)

  1. dy/dx = 3x^2+5

  2. dy/dx = 3x+2.5

  3. dy/dx = 3x^2

  4. dx/dy = 2x^3+(sqrt2.5)

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

When differentiating y = x^3 + sqrt(5) with respect to x, we apply the power rule to x^3 to get 3x^2. Since sqrt(5) is a constant, its derivative is 0. Thus, dy/dx = 3x^2. Distractors include incorrect power rule applications or failing to treat the square root as a constant.