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  1. Z

    ECAT and MCAT Preparation: Post your doubts here!

    The question is demanding about the function which is not even. "D" here is the right option. Sec(x) = Sec(-x) is an even function because by replacing the value of x, the function remains the same. In D option, the function is changed so it is not an even function.
  2. Z

    ECAT and MCAT Preparation: Post your doubts here!

    1st July GIKI.
  3. Z

    ECAT and MCAT Preparation: Post your doubts here!

    Then why cannot we solve this question using V^2/R ?
  4. Z

    ECAT and MCAT Preparation: Post your doubts here!

    alphabravocharlie .. How did you solved the generator one ?
  5. Z

    ECAT and MCAT Preparation: Post your doubts here!

    hassam, in the matrix question, i think the determinant should be splitted up and then the determinant could be found easily. I am not 100 percent sure.
  6. Z

    ECAT and MCAT Preparation: Post your doubts here!

    In the momentum question. As momentum is a vector quantity which depends on velocity and mass of the particle. So as the particle enters the magnetic field, it starts to move in a circular path. If a charge is moving in a circular path, then its centripetal force becomes equal to the magnetic...
  7. Z

    ECAT and MCAT Preparation: Post your doubts here!

    Read the post which was posted two days before by HIMYM. The answer is -6.
  8. Z

    ECAT and MCAT Preparation: Post your doubts here!

    mine is C too Q 58
  9. Z

    ECAT and MCAT Preparation: Post your doubts here!

    What is the conc of FeSO4 in the last question ?
  10. Z

    ECAT and MCAT Preparation: Post your doubts here!

    I think the answer to question 42 is B.
  11. Z

    ECAT and MCAT Preparation: Post your doubts here!

    i don't think so because it comes in advanced mathmetics which is usually not included in the maths portion of aptitude test. Ask some experienced petson too.
  12. Z

    ECAT and MCAT Preparation: Post your doubts here!

    r (cos theeta + iorta (sin theeta)). This is the expanded form of cis.
  13. Z

    ECAT and MCAT Preparation: Post your doubts here!

    it is the polar form of complex numbers. it means r( cos theeta + iota sine theeta) where theeta is the argument of the complex no. r is the modulus of complex no.
  14. Z

    ECAT and MCAT Preparation: Post your doubts here!

    my answer is 20 too.
  15. Z

    ECAT and MCAT Preparation: Post your doubts here!

    the work done ratio will be 1:1. Work donot have any direct link with time but im not sure about it.
  16. Z

    ECAT and MCAT Preparation: Post your doubts here!

    in projectile motion, horizontal component of velocity remains constant only. in the lift, man will weigh 1470 N. The apparent weight of man will increae.
  17. Z

    ECAT and MCAT Preparation: Post your doubts here!

    From where should i practice mathematics MCQ's ??
  18. Z

    ECAT and MCAT Preparation: Post your doubts here!

    Chemistry book*
  19. Z

    ECAT and MCAT Preparation: Post your doubts here!

    Thanks HIMYM. I just figured it out now. Can I leave the last two chapters of FSC part II book ?
  20. Z

    ECAT and MCAT Preparation: Post your doubts here!

    Solve the determinant question in the maths section.
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