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Given unit vectors hat m , hat n and ha...

Given unit vectors ` hat m , hat n and hat p` such that angel between ` hat m and hat n` is `alpha` and angle between ` hat p and( hat mxx hat n)` is also `alpha,then[ hat n hat p hat m]=`

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Let hat a , hat b ,and hat c be the non-coplanar unit vectors. The angle between hat b and hat c is alpha , between hat c and hat a is beta and between hat a and hat b is gamma . If A( hat a cosalpha, 0),B( hat bcosbeta, 0) and C( hat c cosgamma, 0), then show that in triangle AB C , (|hat axx(hat bxx hat c)|)/(sinA)=(|hat bxx(hat cxx hat a)|)/(sinB)=(|hat cxx(hat axx hat b)|)/(sinC)

Find the angle between the vectors hat i-2 hat j+3 hat k and 3 hat i-2 hat j+ hat kdot

find the angle between the vectors vec a= 3 hat i +2 hat k and vec b = 2 hat i -2 hat j + 4 hat k

If hat a , hat b ,a n d hat c are three unit vectors, such that hat a+ hat b+ hat c is also a unit vector and theta_1,theta_2 and theta_3 are angles between the vectors hat a , hat b ; hat b , hat ca n d hat c , hat a respectively, then among theta_1,theta_2 and theta_3 . a. all are acute angles b. all are right angles c. at least one is obtuse angle d. none of these

Find the angle between the vectors vec a= hat i+hat j-hat k and vec b=hat i-hat j+hat k

Find out the angle between two-vectors hat i + hat j and hat i- hat k .

If the vectors hat i- hat j , hat j+ hat k and vec a form a triangle, then vec a may be a. - hat i- hat k b. hat i-2 hat j- hat k c. 2 hat i+ hat j+ hat k d. hat i+ hat k

Find the vector of magnitude 3, bisecting the angle between the vectors vec a=2 hat i+ hat j- hat k and vec b= hat i-2 hat j+ hat kdot

The vector(s) which is/are coplanar with vectors hat i+ hat j+2 hat k and hat i+2 hat j+ hat k , and perpendicular to vector hat i+ hat j+ hat k , is/are a. hat j- hat k b. - hat i+ hat j c. hat i- hat j d. - hat j+ hat k

A vector of magnitude sqrt(2) coplanar with the vector vec a= hat i+ hat j+2 hat k and vec b= hat i+2 hat j+ hat k , and perpendicular to the vector vec c= hat i+ hat j+ hat k , is a. - hat j+ hat k b. hat i- hat k c. hat i- hat j d. hat i- hat j

CENGAGE PUBLICATION-VECTOR ALGEBRA-All Questions
  1. If theta is th angle between the unit vectors a and b , then prove ...

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  2. Let veca , vecb , and vecc be three non-coplanar unit vectors...

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  3. Given unit vectors hat m , hat n and hat p such that angel between h...

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  4. Let vec a , vec b ,a n d vec c be non-coplanar vectors and let the...

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  5. Vector vec O A= hat i+2 hat j+2 hat k turns through a right angle ...

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  6. Find | vec axx vec b| , if vec a= hat i-7 hat j+7 hat k and vec b=3 h...

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  7. Let the vectors vec a and vec b be such that | vec a|=3 and | vec b|=...

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  8. Show that ( vec a- vec b)xx( vec a+ vec b)=2( vec axx vec b)dot

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  9. Let vec a= hat i+4 hat j+2 hat k , vec b=3 hat i-2 hat j+7 hat ka n d...

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  10. If A ,Ba n dC are the vetices of a triangle A B C , then prove sine...

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  11. Using cross product of vectors , prove that sin (A+B)=sin A cosB + cos...

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  12. Find a unit vector perpendicular to the plane determined by the poin...

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  13. If vec a and vec b are two vectors, then prove that ( vec axx vec b...

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  14. In isosceles triangles A B C ,| vec A B|=| vec B C|=8, a point E divid...

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  15. Prove that in a tetrahedron if two pairs of opposite edges are perp...

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  16. Let vec a , vec b , and vec c are vectors such that | vec a|=3,| vec ...

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  17. If | vec a|=| vec b|=| vec a+ vec b|=1, then find the value of | vec a...

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  18. If vec A=4 hat i+6 hat j and vec B=3 hat j+4 hat k , then find the co...

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  19. A particle acted by constant forces 4 hat i+ hat j-3 hat k and 3 hat...

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  20. If veca , vecb , vecc are three mutually perpendicular unit ve...

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