cosα+cosβ+cos γ=0= sin a+sin b+ sin γ then find cos²α+cos²β+cos²γ=3/2
cosα+cosβ+cos γ=0= sin a+sin b+ sin γ then find cos²α+cos²β+cos²γ=3/2

Last Activity: 3 Years ago

Last Activity: 3 Years ago

Last Activity: 3 Years ago

Last Activity: 3 Years ago

Last Activity: 3 Years ago