URGENT !!
sin -1 x+sin -1 y+sin -1 z=π,prove thatx^2 -y^2-z^2 +2yz *square root 1-x^2=0
please answer in a simple and understanding way....
URGENT !!
sin -1 x+sin -1 y+sin -1 z=π,prove thatx^2 -y^2-z^2 +2yz *square root 1-x^2=0
please answer in a simple and understanding way....