Answer:
Step-by-step explanation:
Given:
x = 2cost,
t = (1/2)arccosx
y = 2sint
dy/dx = dy/dt . dt/dx
dy/dt = 2cost
dt/dx = -1/√(1 - x²)
dy/dx = -2cost/√(1 - x²)
Differentiate again to obtain d²y/dx²
d²y/dx² = 2sint/√(1 - x²) - 2xcost/(1 - x²)^(-3/2)
At t = π/4, we have
(√2)/√(1 - x²) - (√2)x(1 - x²)^(3/2)
Answer: it going to be 10.2% percent
Step-by-step explanation: that how you get your answer as your -
10.2 %
The last one will give the incorrect slope
Answer:
48ft^2
Step-by-step explanation:
volume= length x width x height
8 x 3 x 2 = 48
