Search for: If vectors 2i^+2j^-2k^, 5i^+yj^+k^ and -i^+ 2j^+2k^. are coplanar, the value of y is :If vectors 2i^+2j^-2k^, 5i^+yj^+k^ and -i^+ 2j^+2k^. are coplanar, the value of y is :A81B36C23D9 Register to Get Free Mock Test and Study Material +91 Verify OTP Code (required) I agree to the terms and conditions and privacy policy. Solution:For coplanar vectors A→.B→×C→=0=22−25y1−122=22y−2−210+1−210+y=0=y=23Post navigationPrevious: If a^ and b^ are non-collinear unit vectors and if a^+b^=3, then the value of 2a→-5b→.3a→+b→Next: Three vectors A→,B→ and C→ satisfy the relation A→.B→=0 and A→.C→=0. The vector A is Parallel to :Related content Extra Questions for Class 9 Maths with Solutions Chapter Wise FAQ Metallurgy JEE Conservation of Biodiversity – Definition, Methods, Examples and Strategies JEE Main Previous Year Papers Questions With Solutions Chemistry Nitro,Amine and Azo Compounds Democratic Rights Class 9 Extra Questions Civics Chapter 6 Essay on All that Glitters is not Gold in English for Children and Students Evans Tries an O-level Important Questions Class 12 English Short and Long Essay on Corruption in English for Children and Students Essay on Holi Holi Wishes SMS and Messages for Mobile and Whatsapp