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Find the least positive integer 'n' such...

Find the least positive integer 'n' such that `((1+i)/(1-i))^(n) =1`.

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OSWAAL PUBLICATION-SAMPLE PAPER 7-EXERCISE
  1. (1-sin(2)A)(1+tan^(2)A)=1

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  2. Evaluate underset (x rarr 4)lim (4x+2)/(x-2).

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  3. Find the least positive integer 'n' such that ((1+i)/(1-i))^(n) =1.

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  4. How many 3 - digit numbers can be formed by using the digits 1 to 9 if...

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  5. Find the equation of line passing through (4, 2) and parallel to the l...

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  6. set U={0,1,2,3,4,5,6,7,8,9},A={0,1,3,5,7},B={0,2,4,6,8},C={1,4,9}.Find...

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  7. Three are 4 men and 6 women in a city council.If one council member is...

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  8. Solve 7x+3lt 5x+9. Show the graph of the solution on number line.

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  9. Find the degree measure of the angle subtended at the centre of a circ...

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  10. Let f(x)=sqrtx and g(x)=x be two functions defined over the set of non...

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  11. Check the validity of the statements (i) 200 is multiple of 4 a...

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  12. Check the validity of the statements (i) 200 is multiple of 4 a...

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  13. Prove that the points (2, -5) & (-1, 4) are equidistant from the line ...

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  14. Find real value of theta for which (3+2i sin theta)/(1-2i sin theta) i...

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  15. Define finite and infinite set with suitable examples.

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  16. Evaluate underset (x rarr 1)lim(x^15-1)/(x^10-1).

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  17. Prove that : sin3x=3sinx-4sin^(3)x

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  18. Show that the points A(0,7,10), B(-1,6,6) and C(-4,9,6) from a right...

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  20. A box contains 10 red marbles, 20 blue marbles and 30 green marbles. 5...

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