CUET Preparation Today
If a line has direction ratios 3, -4, 5 then it's direction cosines will be- |
3/√50 , -4 /√50 , 5/√50 3/√50 , 4 /√50 , 5/√50 3/√50 , -4 /√50 , -5/√50 -3/√50 , -4 /√50 , 5/√50 |
3/√50 , -4 /√50 , 5/√50 |
Direction cosines are- 3/√{(3)2 +(-4)2 + (5)2}, -4/√{(3)2 +(-4)2 + (5)2}, 5 /√{(3)2 +(-4)2 + (5)2} 3/√50 , -4 /√50 , 5/√50 |
