In this problem, x = c1 cos(t) + c2 sin(t)

is a two-parameter family of solutions of the second-order DE

x'' + x = 0.

Find a solution of the second-order IVP consisting of this differential equation and the given initial conditions.

x(pi/2) = 0, x'(pi/2) = 1

  n=   0.0000 - 0.3750 i  

  n=   0.0000 + 0.3750 i

step-by-step explanation:

one of these should be correct

43

step-by-step explanation:

the arc length is found by finding the circumference of the full circle (2xpixradius) and then dividing by 4 to find just one quarter of the circle (90 degrees).

b. hoped i'm right lol

step-by-step explanation: