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Define a signum function. Write range, a...

Define a signum function. Write range, also draw the graph of the function.

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OSWAAL PUBLICATION-SOLVED PAPER 2017-1-EXERCISE
  1. Express 1+isqrt3 in polar form

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  2. In a survey of 600 students in a school, 150 students were found to be...

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  3. Define a signum function. Write range, also draw the graph of the func...

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  4. tan4x=(4tan x(1-tan^(2)x))/(1-6tan^(2)x+tan^(4)x)

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  5. If x + iy = sqrt((a + ib)/(c + id)) Prove that x^(2) + y^(2) = sqrt...

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  6. Convert the complex number -16/(1+isqrt(3)) into polar form.

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  7. Find (a+b)^4 -(a-b)^4.Hence evaluate (sqrt(3)+sqrt(2))^4-(sqrt(3)-sqrt...

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  8. How many words, with or without meaning can be made from the letters o...

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  9. How many words, with or without meaning can be made from the letters o...

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  10. How many words, with or without meaning can be made from the letters o...

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  11. Find the foci and eccentricity of ellipse (x^(2))/(16) + (y^(2))/(9) ...

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  12. How many terms of AP - 6 -11//2,-5 . . . are needed to give the s...

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  13. In an A.P if m^(th) term is n and n^(th) term is m, where mnen, find t...

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  14. Compute the derivative of sinx using first principal method ?

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  15. Verify by the method of contradiction that sqrt(2) is irrational .

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  16. A committee of two persons is selected from two men and two women.What...

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  17. A committee of two persons is selected from two men and two women.What...

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  18. If E and F are two events such that P(E)=1/4, P(E)=1/2 and P(E and F)=...

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  19. Prove that underset(xrarr0)lim(sinx/x=1) ?

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  20. 1^(2)+2^(2)+3^(2)+............+n^(2)=(n(n+1)(2n+1))/6 forall n in N.

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