Bytelearn - cat image with glassesAI tutor

Welcome to Bytelearn!

Let’s check out your problem:

Find all critical points of the function \newlinef(x)=5x25x22x+10.f(x)=\frac{5x^{2}}{5x^{2}-2x+10}. \newline(Use symbolic notation and fractions where needed. Give your answer in the form of a comma separated list. If the function does not have any critical points, enter DNE.)\newlinecritical points:

Full solution

Q. Find all critical points of the function \newlinef(x)=5x25x22x+10.f(x)=\frac{5x^{2}}{5x^{2}-2x+10}. \newline(Use symbolic notation and fractions where needed. Give your answer in the form of a comma separated list. If the function does not have any critical points, enter DNE.)\newlinecritical points:
  1. Find Critical Points: To find the critical points of the function, we need to find the values of xx where the derivative of the function is 00 or undefined.
  2. Calculate Derivative: First, we find the derivative of the function f(x)f(x) using the quotient rule, which states that if f(x)=g(x)h(x)f(x) = \frac{g(x)}{h(x)}, then f(x)=g(x)h(x)g(x)h(x)(h(x))2f'(x) = \frac{g'(x)h(x) - g(x)h'(x)}{(h(x))^2}.
  3. Apply Quotient Rule: Let g(x)=5x2g(x) = 5x^2 and h(x)=5x22x+10h(x) = 5x^2 - 2x + 10. Then g(x)=10xg'(x) = 10x and h(x)=10x2h'(x) = 10x - 2.
  4. Simplify Numerator: Using the quotient rule, we get f(x)=10x(5x22x+10)5x2(10x2)(5x22x+10)2f'(x) = \frac{10x(5x^2 - 2x + 10) - 5x^2(10x - 2)}{(5x^2 - 2x + 10)^2}.
  5. Set Derivative Equal to Zero: Simplify the numerator of f(x)f'(x): 10x(5x22x+10)5x2(10x2)=50x320x2+100x50x3+10x2=10x2+100x10x(5x^2 - 2x + 10) - 5x^2(10x - 2) = 50x^3 - 20x^2 + 100x - 50x^3 + 10x^2 = -10x^2 + 100x.
  6. Factor and Solve: Now we have f(x)=10x2+100x(5x22x+10)2f'(x) = \frac{-10x^2 + 100x}{(5x^2 - 2x + 10)^2}.
  7. Identify Critical Points: The critical points occur where the derivative is zero or undefined. The denominator (5x22x+10)2(5x^2 - 2x + 10)^2 is always positive, so the derivative is never undefined. We only need to set the numerator equal to zero to find the critical points.
  8. Identify Critical Points: The critical points occur where the derivative is zero or undefined. The denominator (5x22x+10)2(5x^2 - 2x + 10)^2 is always positive, so the derivative is never undefined. We only need to set the numerator equal to zero to find the critical points.Set the numerator equal to zero: 10x2+100x=0-10x^2 + 100x = 0.
  9. Identify Critical Points: The critical points occur where the derivative is zero or undefined. The denominator (5x22x+10)2(5x^2 - 2x + 10)^2 is always positive, so the derivative is never undefined. We only need to set the numerator equal to zero to find the critical points.Set the numerator equal to zero: 10x2+100x=0-10x^2 + 100x = 0.Factor out the common factor: 10x(x10)=0-10x(x - 10) = 0.
  10. Identify Critical Points: The critical points occur where the derivative is zero or undefined. The denominator 5x22x+105x^2 - 2x + 10^22 is always positive, so the derivative is never undefined. We only need to set the numerator equal to zero to find the critical points.Set the numerator equal to zero: (-10\)x^22 + 100100x = 00.Factor out the common factor: (-10\)x(x - 1010) = 00.Set each factor equal to zero: (-10\)x = 00 and x - 1010 = 00.
  11. Identify Critical Points: The critical points occur where the derivative is zero or undefined. The denominator (5x22x+10)2(5x^2 - 2x + 10)^2 is always positive, so the derivative is never undefined. We only need to set the numerator equal to zero to find the critical points.Set the numerator equal to zero: 10x2+100x=0-10x^2 + 100x = 0.Factor out the common factor: 10x(x10)=0-10x(x - 10) = 0.Set each factor equal to zero: 10x=0-10x = 0 and x10=0x - 10 = 0.Solve for xx: x=0x = 0 and x=10x = 10.
  12. Identify Critical Points: The critical points occur where the derivative is zero or undefined. The denominator 5x22x+105x^2 - 2x + 10^22 is always positive, so the derivative is never undefined. We only need to set the numerator equal to zero to find the critical points.Set the numerator equal to zero: (-10\)x^22 + 100100x = 00.Factor out the common factor: (-10\)x(x - 1010) = 00.Set each factor equal to zero: (-10\)x = 00 and x - 1010 = 00.Solve for x: \x = 00 and \x = 1010.The critical points of the function are \x = 00 and \x = 1010.

More problems from Complex conjugate theorem