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Let vectors ` vec a , vec b , vec c ,a n d vec d` be such that `( vec axx vec b)xx( vec cxx vec d)=0.` Let `P_1a n dP_2` be planes determined by the pair of vectors ` vec a , vec b ,a n d vec c , vec d ,` respectively. Then the angle between `P_1a n dP_2` is a.`0` b. `pi//4` c. `pi//3` d. `pi//2`

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RESONANCE DPP-JEE MAINS-All Questions
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  3. Let vectors vec a , vec b , vec c ,a n d vec d be such that ( vec ax...

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  5. Sum of all the numbers between 1 and 1000 which are divisible by 3 i...

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  6. int(cos^3x)/(sqrt(sin^7x))dx= 2/5dotcos e c^(7/2)x+2sqrt(cose c x)+c...

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  7. Given an A.P. whose terms are all positive integers. The sum of its fi...

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  8. If a, b, c are in A.P. and b-a, c-b, a are in G.P. then a:b:c=?

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  9. Evaluate: int(x+1)/(x(1+xe^x)^2)dx

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  10. Let the sequence a1,a2,a3, ,an from an A.P. Then the value of a1 2-a2 ...

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  12. The sum of the first three terms of an A.P. is 9 and the sum of their ...

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  13. int("sin"2"x")/(s in5x s in3x)dx 1/3ln|sin3x|+1/5ln|sin5x|+c b. 1/3l...

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  14. A postman delivered daily for 42 days 4 more latters each day than on ...

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  15. If int0^1tan^(-1)xdx=alpha,t h e nint0^(pi/4)tan^(-1)((2cos^2theta)/(...

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  16. If in a triangle A B C , right angle at B ,s-a=3a n ds-c=2, then a=2,c...

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  17. The number of distinct real roots of |(sinx,cosx,cosx),(cosx,sinx,cosx...

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  18. In a triangle A B C , right angled at B , the inradius is (A B+B C-A C...

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  19. Let vec V=2 hat i+ hat j- hat ka n d vec W= hat i+3 hat kdot If vec ...

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  20. If in a A B C ,(cos A)/a=(cos B)/b=(cos C)/c , then the triangle is: ...

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