Question

Cat este (8*sin^3 pi/4)/3?

Answer 1

sin³(π/4)= sin³ 45° = (√2/2)³ = 2√2/8 = √2/4


$\frac{8* \frac{ \sqrt{2} }{4} }{3} = \frac{2 \sqrt{2}}{3}$

Answer 2

sinπ/4=√2/2
sin³π/4=2√2/8
8sin³π/4=2√2
(8*sin^3 pi/4)/3=2√2/3 , asta ai cerut