(1) 25 H-TAT2014 ३. सदिश a+6, 6 के ...
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(1) 25 H-TAT2014 ३. सदिश a+6, 6 के लम्बवत् है और 2b +d, d के लम्बवत् है, तो If vector a+h is perpendicular to b and 2b +4 is perpendicular to a then (2) q=2b (3) b = 24 (1) d=2b (4) ६ =b 1| |-- - - - - TT न कोपा है तो Sin १ = |

JEE/Engineering Exams
Maths
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( (a+b) cdot vec{b}=0 quad a quad(2 vec{b}+vec{a}) cdot vec{a}=0 ) ( vec{a} cdot vec{b}+|b|^{2}=0 quad 2 a cdot b+|a|^{2}=0 ) ( therefore quad 2 a cdot b+2|b|^{2}=0 ) ( therefore quad frac{1}{a}=sqrt{2} b )
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