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Evaluate the product (3vec(a)-5vec(b)).(...

Evaluate the product `(3vec(a)-5vec(b)).(2vec(a)+7vec(b))`.

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Evaluate : (3vec(a)-5vec(b)).(2vec(a)+7vec(b)) .

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The vector (vec(a)+3vec(b)) is perpendicular to (7 vec(a)-5vec(b)) and (vec(a)-4vec(b)) is perpendicular to (7vec(a)-2vec(b)) . The angle between vec(a) and vec(b) is :

If vec a and vec b are two vectors,such that |vec a|=2,|vec b|=1 and vec a*vec b=1, then find (3vec a-5vec b)*(2vec a+7vec b)

If |vec a|=2,|vec b|=1 and vec a*vcb=1 then find the value of (3vec a-5vec b)*(2vec a+vec 7vec b)

If two vectors vec a and vec b are such that |vec a|=2,|vec b|=1 and vec a*vec b=1, find (3vec a-5vec b)*(2vec a+7vec b)

Show that the points having position vectors (-2vec(a) + 3 vec(b)+5vec(c)),(vec(a)+ 2 vec(b)+ 3 vec(c)) and (7vec(a)- vec(c)) are collinear, whatever be vec(a),vec(b),vec(c).

If vec(a)+vec(b)+vec(c )=0 " and" |vec(a)|=3,|vec(b)|=5, |vec(c )|=7 , then find the value of vec(a),vec(b)+vec(b).vec(c )+vec(c ).vec(a) .

Examine for coplanarity of the following sets of points 3vec(a) + 2vec(b) -5vec(c), 3vec(a) + 8vec(b) + 5vec(c), -3vec(a) + 2vec(b) + vec(c) , vec(a) + 4vec(b) - 3vec(c) .

Prove that |vec(a)xx vec(b)|^(2)=|vec(a)|^(2)|vec(b)|^(2)-(vec(a).vec(b))^(2) =|(vec(a).vec(a),vec(a).vec(b)),(vec(a).vec(b),vec(b).vec(b))| .

MODERN PUBLICATION-VECTOR ALGEBRA -Ncert File Question from Ncert Book (Exercise 10.3)
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  2. Find the angle between the vectors hat i-2 hat j+3 hat ka n d3 hat...

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  3. Find the projection of the vector hat i- hat jon the vector hat i+ ...

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  4. Find the projection of the vector hat i+3 hat j+7 hat kon the vector...

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  5. Show that each of the given three vectors is a unit vector: 1/7(2 hat...

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  6. find |veca|,|vecb| if (veca+vecb).(veca-vecb)=8 and |veca|=8|vecb|

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  7. Evaluate the product (3vec(a)-5vec(b)).(2vec(a)+7vec(b)).

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  8. Find the magnitude of two vectors vec a\ a n d\ vec b having the sam...

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  9. Find |vec(x)|, if for a unit vector vec(a), (vec(x)-vec(a)).(vec(x)+ve...

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  10. If vectors veca = 2hati + 2hatj +3hatk,vec b=-hati+2hatj+hatk and vec ...

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  11. Show that |vec(a)|vec(b)+|vec(b)|vec(a) is perpendicular to |vec(a)|v...

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  12. If vec a\ dot\ vec a=0 and vec a\ dot\ vec b=0, then what can be c...

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  13. If vec a ,\ vec b ,\ vec c are unit vectors such that vec a+ vec b...

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  14. If either vec a= vec0\ or\ vec b= vec0\ t h e n\ vec adot vec b= ve...

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  15. If the vertices A,B,C of a triangle ABC are (1,2,3),(-1,0,0) ,(0,1,2) ...

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  16. Show that the points A(1, 2, 7), B(2, 6, 3) and C(3, 10 , 1)are colli...

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  17. Show that the points, A, B and C having position vectors (2hat(i)-hat(...

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  18. If vec a is a non zero vector a magnitude ' a^(prime)\ a n d\ lambda ...

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