Question

if x=r.cosA.sinB;y=r.sinA.sinB;z=r.cosB ,then prove that x²+y²+z²=r²​

Answer 1

Answer:

find a single discount equivalent to 20% 10% and 20%

Answer 2

$\large\mathrm{bfbdbfjd}$

$\large\tt{\purple{noseee}}$

$\Large{\underbrace{\underline{\bf{nosee}}}}$

$\large{\underline{\underline{\purple{\sf{Bla}}}}}$

$\underline{\textbf{WTF}}$

$\mathbf\pink {HOLA}$

fnfjdjjejejejejejejj