Math Chapter Wise question with answer

Q01 Let a ∧ and b ∧ be two unit vectors and θ be the angle between them. Which of the following will be value of cos 2... English · UP PGT 2021 Q02 If two unit vectors a and b makes an angle of 300 and 1200 respectively with the x-axis, then the value of a b + +... English · TGT 2011 Q03 If the vectors ˆ ˆ ˆ ˆ ˆ ˆ i 2j 3k, i 4j 7k, + + λ + + + + λ + + + + λ + + + + λ + + ˆ ˆ ˆ 3i 2j 5k − − − − − − − −... English · TGT 2011 Q04 If the volume of parallelepiped formed by the vectors ˆ ˆ ˆ ˆ ˆ i aj k, j ak + + + + + + + + + + + + and ˆ ˆ ai k +... English · KVS PGT 23-12-2018 Q05 If OA a = and OB b = then what will be the value of BA? English · TGT 2013 Q06 If ˆ ˆ ˆ a 6i 4j 4k = + + and ˆ ˆ ˆ b 2i 4j 3k = + + then, what will be the value of b a ×? English · TGT 2013