Math Chapter Wise question with answer

Q01 If a, b and c are unit vectors such that a + b + c = 0, then the value of a. b + b. c + c.a is: English · KVS PGT 2023 Q02 If â and b̂ are unit vectors such that ˆ â + 2b and ˆ ˆ 5a – 4b are perpendicular to each other, then the angle b... English · UP TGT 2021 Q03 If a and b are two unit vectors such that 2 a b + + and 5 4 a b − − are perpendicular to each other, then the angle... English · PGT 2004 Q04 If a and b are unit vectors such that. cos a b = θ = θ = θ then the value of | | a b + + is English · PGT 2004 Q05 Let a,b,c be three non zero vectors such that c is a unit vector perpendicular to both a and b. If the angle betwee... English · KVS PGT 23-12-2018 Q06 If â and b̂ are two unit vectors such that ˆ ˆ (a 2b) (5a 4b), then the angle between â and b̂ is– English · UP PCS (Pre) 2007