- #1
the7joker7
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Homework Statement
Convert the point `(rho,theta,phi) = (6, (5pi)/4, pi/2)` to Cartesian coordinates. Give answers as positive values, either as expressions, or decimals to one decimal place.
The Attempt at a Solution
{x}=r*sintheta*cosphi
{y}=r*sintheta*sinphi
{z}=r*costheta
So
x = 6*sin(5pi/4)*cos(pi/2)
y = 6*sin(5pi/4)*sin(pi/2)
z = 6*cos(5pi/4)
x = 0
y = -4.242640687 (+2pi)
z = -4.242640687 (+2pi)
What did I do wrong?