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If | vec a|=2,| vec b|=5a n d vec adot v...

If `| vec a|=2,| vec b|=5a n d vec adot vec b=0,` then ` vec ax( vec ax( vec ax( vec ax( vec a x( vec ax vec b)))))` is equal to `64 vec a` (b) `64 vec b` (c) `-64 vec b` (d) `-64 vec a`

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RESONANCE DPP-JEE MAINS-All Questions
  1. If int(x+1)/(x^2+x+3)dx=a ln|x^2+x+3|+1/(sqrt(b))tan^(-1)((c x+d)/(sqr...

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  2. AB is a vertical pole and C is its melting point. The end A is on the ...

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  3. If | vec a|=2,| vec b|=5a n d vec adot vec b=0, then vec ax( vec ax( ...

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  4. A bird is sitting on the top of a vertical pole 20 m high and its e...

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  5. Evaluate: int(-1)^3(tan^(-1)(x/(x^2+1))+tan^(-1)((x^2+1)/x))dx

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  6. Two pillars of equal height stand on either side of a roadway which is...

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  7. If the angles of elevation of the top of a tower from three colline...

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  8. int0^pisin^3theta(1+2costheta)(1+costheta)^2 d theta is equal to (a...

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  9. If AD, BE and CF are the medians of a DeltaA B C ,t h e n(A D^2+B E^2+...

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  10. The value of int(-(pi/4)^(1/3))^((pi/4)^(1/3))(x^2)/((1+sin^2x^3)(1+e...

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  11. I(1)=int(0)^((pi)/2)In (sinx)dx, I(2)=int(-pi//4)^(pi//4)In(sinx+cosx)...

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  12. Find the coordinates of a point on the parabola y=x^2+7x+2 which is cl...

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  13. Let d/(dx)F(x)=((e^(sinx))/x),x > 0. If int1^4 3/x e^sin (x^3)dx...

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  14. In a triangle ABC if (s-a)/(a-b)=(s-c)/(b-c) then r1,r2,r3 are in AP

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  15. Show that int0^(pi/2)sqrt((sin2theta))sinthetadtheta=pi/4

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  16. If in triangle ABC (r)/(r(1))=(1)/(2), then the value of tan(A/2)(tan(...

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  17. Let u=int0^1("ln"(x+1))/(x^2+1)dxa n dv=int0^(pi/2)ln(sin2x)dx ,t h e ...

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  18. A golf ball is dropped form a height of 80 m. Each time the ball hit...

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  19. If |f(x1)-f(x2)|lt=(x1-x2)^2, for all x1, x2 in R , then the equati...

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  20. If the tangents from the point (lambda, 3) to the ellipse x^2/9+y^2/4=...

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