1) cos 2α + cos 2β + cos 2γ - 1 = 0 2) cos 2α + cos 2β + cos 2γ - 2 = 0 3) cos 2α + cos 2β + cos 2γ + 1 = 0 4) cos 2α + cos 2β + cos 2γ + 3 =... View Article
1) internally in the ratio 2 : 3 2) externally in the ratio 2 : 3 3) internally in the ratio 3 : 2 4) externally in the ratio 3 : 2 Solution:... View Article