Ava45018 Ava45018
  • 01-10-2020
  • Mathematics
contestada

How do you do this question?

How do you do this question class=

Respuesta :

MathPhys
MathPhys MathPhys
  • 01-10-2020

Step-by-step explanation:

S = ∫ 2π y ds

ds = √(1 + (dx/dy)²) dy

ds = √(1 + (8y)²) dy

ds = √(1 + 64y²) dy

S = ∫₁² 2π y √(1 + 64y²) dy

S = π/64 ∫₁² 128y √(1 + 64y²) dy

S = π/64 [⅔ (1 + 64y²)^(³/₂)] |₁²

S = π/96 (1 + 64y²)^(³/₂) |₁²

S = π/96 (1 + 256)^(³/₂) − π/96 (1 + 64)^(³/₂)

S = π/96 (257√257) − π/96 (65√65)

S = π/96 (257√257 − 65√65)

Answer Link

Otras preguntas

Which was found to be unconstitutional based on the Supreme Court’s ruling in Scott v. Sandford?
Why do interest rates on loans tend to be lower in a weak economy than in a strong one? a. A weak economy tends to have low inflation, so interest rates drop to
I need help labeling these I can't find them in the history book
The Spanish Club at Little Middle School had 28 members at the beginning of the year. After having a Taco Tuesday party, the club had 35 members. What was the
what strategies did conservative whites use to regain political control of the states?
Question 23 Evaluate the expression when =y4 and =x6 . +x5y
what is the central america spring
Which of the following is a benefit of maintaining a good level of flexibility?
Pablo: ¡Qué bestia! ¿Qué tipo de animal _______________ éste?
Why was the homestead strike of 1892 bad for labor unions