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Find a unit vector perpendicular to both...

Find a unit vector perpendicular to both of the vectors `veca + vecb` and `veca - vecb` where `veca = hati + hatj + hatk` and `b = hati+2hatj+3hatk`.

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SHARAM PUBLICATION-MODEL QUESTION PAPER 19-EXERCISE
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  2. Prove that |{:(1+a,1,1),(1,1+b,1),(1,1,1+c):}|=abc(1+1/a+1/b+1/c)or(ab...

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  3. Prove that |(1, a, a^3),(1, b, b^3),(1, c, c^3)|= (a-b)(b-c)(c-a)(a+b+...

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  4. If A=[[2,1],[-1,3]] B=[[2,5],[-3,2]] find AB and BA.

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  6. Find a vector of magnitude 5 units and parallel to the resultant of ve...

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  7. Show that [veca+vecbvecb+veccvecc+veca] = 2[vecavecbvecc]

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  8. Find the equation of the plane through the points (1, 2, -3), (2,3, -4...

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  11. Solve the following LPP graphically Maximize, Z=20x+30y Subject to...

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  12. [[2,5],[3,4]][[3,1],[-2,3]]=[[x,y],[1,z]] find x,y and z.

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  13. Using properties of determinants, prove the following abs{:(a^2, bc, a...

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  14. If x = (1-cos^2 theta)/(cos theta), y = (1-cos^(2n)theta)/(cos^n theta...

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  18. Solve the differential equation (x^(2)+1)(dy)/(dx)+2xy= sqrt(x^(2)+4),

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  19. Find a unit vector perpendicular to both of the vectors veca + vecb an...

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  20. Find the vector and cartesian equations of the line passing through th...

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