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Express 2 hat i- hat j+3 hat k as ...

Express `2 hat i- hat j+3 hat k` as the sum of a vector parallel and a vector perpendicular to `2 hat i+4 hat j-2 hat kdot`

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Express 2 hat i- hat j+3 hat k as the sum of vector parallel and a vector perpendicular to 2 hat i+4 hat j-2 hat kdot

A vector perpendicular to hat(i)+hat(j)+hat(k) is

Write a unit vector perpendicular to hat i+ hat j\ a n d\ hat j+ hat kdot

Decompose the vector 6 hat i-3 hat j-6 hat k into vectors which are parallel and perpendicular to the vecrtor hat i+ hat j+ hat kdot

Decompose the vector 6 hat i-3 hat j-6 hat k into vectors which are parallel and perpendicular to the vector . hat i+ hat j+ hat k Then the vectors are .

Vector 1/3(2i-2j+k) is (A) a unit vector (B) makes an angle pi//3 with vector (2 hat i-4 hat j+3 hat k) (C) parallel to vector (- hat i+ hat j-1/2 hat k) (D) perpendicular to vector 3 hat i+2 hat j-2 hat k

Find a vector of magnitude 49, which is perpendicular to both the vectors 2 hat i+3 hat j+6 hat k and 3 hat i-6 hat j+2 hat k . Find a vector whose length is 3 and which is perpendicular to the vector vec a=3 hat i+ hat j-4 hat k and vec b=6 hat i+5 hat j-2 hat k .

The vector vec b=3 hat i+4 hat k is to be written as the sum of a vector vecalpha parallel to vec a= hat i+ hat j and a vector vecbeta perpendicular to vec adot Then vecalpha= 3/2( hat i+ hat j) b. 2/3( hat i+ hat j) c. 1/2( hat i+ hat j) d. 1/3( hat i+ hat j)

The scalar product of the vector hat i+\ hat j+\ hat k\ with the unit vector along the sum of vectors 2 hat i+\ 4 hat j-5 hat k . and lambda hat i+\ 2 hat j+\ 3 hat k\ is equal to one. Find the value of lambda .

Find the projection of vector hat i+3 hat j+7 hat k on the vector 7 hat i- hat j+8 hat kdot

RD SHARMA ENGLISH-SCALAR OR DOT PRODUCT-All Questions
  1. Express the vector vec a=5 hat i-2 hat j+5 hat k as the sum of two ve...

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  2. If vec a\ a n d\ vec b are two vectors of the same magnitude incline...

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  3. Express 2 hat i- hat j+3 hat k as the sum of a vector parallel a...

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  4. Decompose the vector 6 hat i-3 hat j-6 hat k into vectors which are pa...

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  5. Let vec a=5 hat i- hat j+7 hat k\ a n d\ vec b= hat i- hat j+lambda ...

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  6. If vec adot vec a=0\ a n d\ vec adot vec b=0\ what can you conclud...

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  7. If vec c is perpendicular to both vec a\ a n d\ vec b , then prove ...

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  8. If | vec a|= a\ a n d\ | vec b|=b, prove that ( vec a/(a^2)- vec b/(b^...

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  9. If vec a ,\ vec b ,\ vec c are three non coplanar vectors such that...

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  10. If a vector vec a is perpendicular to two non collinear vectors vec ...

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  11. If vec a+ vec b+ vec c= vec0, show that the angle theta between the v...

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  12. Let vec u ,\ vec v\ a n d\ vec w be vector such vec u+ vec v+ vec ...

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  13. Let vec a=x^2 hat i+2 hat j-2 hat k ,\ vec b= hat i- hat j+ hat k\ a...

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  14. Find the value of x\ a n d\ y if the vectors vec a=3 hat i+x hat j- h...

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  15. If vec a\ a n d\ vec b are two non collinear unit vectors such that ...

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  16. If vec a ,\ vec b are two vectors such that | vec a+ vec b|\ =| vec ...

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  17. Prove using vectors: The median to the base of an isosceles triangl...

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  18. Show that the diagonals of a rhombus bisect each other at right ang...

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  19. Using vector method, prove that the angel in a semi circle is a rig...

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  20. Prove that the cosine formula for triangles is equivalent to the de...

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