Zadanie 11a
Show that y tends to 1 as x tends to positive infinity.
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Show that y tends to 1 as x tends to positive infinity.
(i) Show that y′ = 1/(1 + x2)3/2. (ii) Hence show that y′ = (1 − y2)3/2.
Use y′ = (1 − y2)3/2. (i) By implicit differentiation, show that y′′ = −3y(1 − y2)2. (ii) Hence express y′′′ in terms of y.
Use the derivative relations y′ = (1 − y2)3/2, y′′ = −3y(1 − y2)2 and y′′′ = −3(1 − 5y2)(1 − y2)5/2 to find the Maclaurin series through the cubic term.
Write the equation of L as r=a+λb, λ∈R.
Find the minimum distance from O to L.
Verify that Π contains L.
A line M is parallel to Π, passes through (2,1,3), and intersects the z-axis. Find a vector equation of M.
Find z₁,z₂,z₃ in polar or exponential form.
The ordered roots form a geometric sequence. Find its common ratio in Cartesian form.