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Show that the lines vecr= (hat i+hat j+h...

Show that the lines `vecr= (hat i+hat j+hat k)+t(hat i-hat j+hat k)` and `vecr= (3 hati-hatk)+s(4 hat j-16 hat k)` intersect and find the position vector of their point of their point of intersection.

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Show that the lines vec(r)=(hat(i)+hat(j)+hat(k))+t(hat(i)-hat(j)+hat(k)) and vec(r)=(3hat(i)-hat(k))+s(4hat(j)-16hat(k)) intersect and find the position vector of their point of intersection.

Find whether the lines vec(r)=(2hat(i)+3hat(j)+hat(k))+t(5hat(j)-4hat(k)) and vec(r)=(6hat(j)-hat(k))+s(hat(i)-3hat(j)+hat(k)) intersect or not and if they inersect, find the position vector of their poin of intersection.

The position vector of the points P and Q are 5 hat i+7 hat j-2 hat k and -3 hat i+3 hat j+6 hat k , respectively. Vector vec A=3 hat i- hat j+ hat k passes through point P and vector vec B=-3 hat i+2 hat j+4 hat k passes through point Q . A third vector 2 hat i+7 hat j-5 hat k intersects vectors A and Bdot Find the position vectors of points of intersection.

The lines vec(r)=hat(i)+t(5hat(i)+2hat(j)+hat(k)) and vec(r)=hat(i)+s(-10hat(i)-4hat(j)-2hat(k)) are -

If vec a= 2 hat i- hat j+ hat k and vec b = - hat i+3 hat j+4 hat k ,then veca.vecb =

Find the angle between the lines vec r= dot( hat i+2 hat j- hat k)+lambda( hat i- hat j+ hat k) and the plane vec r . dot(3 hat i- hat j+ hat k)=4.

The distance between the line vec r=(2 hat i-2 hat j+3 hat k)+lambda( hat i- hat j+4 hat k) and plane vec rdot(( hat i+5 hat j+ hat k))=5.

Prove that point hat i +2 hat j - 3 hat k ,2 hat i - hat j + hat k and 2 hat i + 5 hat j - hat k from a triangle in space.

If vec a=3 hat i- hat j-4 hat k , vec b=2 hat i+4 hat j-3 hat k and vec c= hat i+2 hat j- hat k , find |3 vec a-2 hat b+4 hat c|dot

If the vectors x hat (i) - 4 hat (j) + 5 hat (k) , hat (i) + 2 hat (j) + hat (k) and2 hat (i) - hat (j) + hat (k) are coplanar , find the value x

UNITED BOOK HOUSE-SET 1-EXERCISE
  1. Prove that the equation of the plane which passes through the point (2...

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  2. Show that the probability that exactly one of the events A and B occur...

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  3. Show that tan^(-1)(1/sqrt3tanx/2)=1/2 cos^(-1)(1+2cosx)/(2+cosx).

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  4. If A = [[1,x,-2],[2,2,4],[0,0,2]] and A^2+2I3=3A Find x, here I3 is th...

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  5. Prove that . |[1,a,a^2-bc],[1,b,b^2-ca],[1,c,c^2-ab]|=0

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  6. Show that , |[(a^2+b^2)/c,c,c],[a,(b^2+c^2)/a,a],[b,b,(c^2+a^2)/b]|=4a...

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  7. If f(x)= tan^(-1)(x/(1+20x^2)) show that f'(x)=5/(1+25x^2)-4/(1+16x^2)...

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  8. Let y = (sin^(-1)x)^2+(cos^(-1)x)^2 show that (1-x^2)(d^2y)/(dx^2)-x(d...

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  9. Evaluate: int (dx)/sqrt(2/3x^3-x^2+1/3)

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  10. Solve: (6x+9y-7)dx= (2x+3y-6)dy

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  11. Solve: (1-x^2)(dy)/(dx)-xy=x^2, given y = 2 when x= 0.

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  12. If vec(AB) = 2 hati- 4 hatj +5 hatk and vec(BC)= hat i-2 hatj-3hatk in...

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  13. Find x such that the four points A(3,2,1),B(4,x,5),C(4,2,-2) and D(6,5...

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  14. Prove that overset(pi//2)underset(0)intlog(sinx)dx = -pi/2 log2

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  15. Urn A contains 1 white, 2 black and 3 red balls urn B contains 2 white...

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  16. A cylindrical tin can, open at the top, of a given capacity has to be...

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  17. If the straight line y =kx+3 is a tangent to the hyperbola 7x^2-4y^2=2...

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  18. Using calculus, find the area bounded by the curve |x|+|y|=1.

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  19. Show that the lines vecr= (hat i+hat j+hat k)+t(hat i-hat j+hat k) and...

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  20. Find the equation of the plane passing through the points (-1,1,1) an...

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