Answer:
A = pi x r²
A = pi x 8²
A = 64pi
Step-by-step explanation:
I hope this helps :D
We are given with the equation
y = e^-9x with the restriction of x <span>≥ 0
If rotated about the x-axis the area of the resulting surface is
A = </span>π ∫ y² dx
Substituing
A = π ∫ (e^-9x)² dx
A = π ∫ e^-18x dx
The limits are from 0 to positive infinity.
Answer:
lo contrario de -3 es positivo tres o 3
