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 A,BandC are unit vectors. A is perpendicular to both B and C and angle between B and C is 30º. Then vector A is - English · RPSC PGT 2022 Q03 a;b;c are unit vectors b and c are non collinear vector. If a × (2b ×c) =b, then angle between a and b is - English · RPSC PGT 2022 Q04 Given that a and b are unit vectors. If the vectors p 3a 5b and q a b are mutually perpendicular then– English · KVS TGT 2017 Q05 If a and b are two unit vectors inclined at an angle of 600 to each other then- English · UP TGT 1999 UKPSC Lecturer (Mains) 2020 Q06 If â and b̂ are unit vectors inclined at an angle θ, then the value of () ˆ 1 a - b 2 is English · UKPSC GIC 2018