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Calculate the modulus of(1+2i)/(2-i)...

Calculate the modulus of``(1+2i)/(2-i)`

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UNITED BOOK HOUSE-MODEL QUESTION PAPERS-SET 8-EXERCISE
  1. Simplify: (cos(90^@+theta)sec(-theta)tan(180^@-theta))/(sec(360^@+thet...

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  2. In /\ABC.if cos A=(sinB)/(sinC),then show that the triangle is right a...

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  3. Calculate the modulus of(1+2i)/(2-i)

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  4. The sum of the co-efficient of the expansion of (a^4x^2-2a^2x+1)^101is...

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  5. If ^(2n)C3:^nC3=11:1find the value of n.

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  6. Find the vaue of 9^(1/3)9^(1/9)9^(1/27)...oo

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  7. The co-ordinate of three vertices and centroid of a triangle are (x, ...

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  8. The equation of one arm of a equilateral triangle is x + y = 2 and th...

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  9. If y=x^nlogax(a>0,a!=1),then show that logea(xy1-ny)=x^n

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  10. Evaluate' : lim(xrarroo)(1-sqrtx)/(1+sqrtx)

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  11. If A and B are two events., such that P(A) = P(B)-= 1, then Prove that...

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  12. Find that mean deviation from Arithmetic mean of the' natural numbers ...

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  13. A market research group conducted a survey of 500 consumers and report...

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  14. If alphaand betaare positive acute angles and cos2alpha=(3cos2beta-1)/...

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  15. In any triangle ABC If sinA : sinB: sinC=4:5:6,then prove that cos A ...

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  16. Prove by. mathematical induction :1.2+2.2^2+3.2^3+...+n.2^n=(n-1)2^(n+...

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  17. If S1, S2 and S3 be respectively the sum of n, 2n and 3n terms of a G....

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  18. Two parallel straight lines contains 5 points and 10 points respective...

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  19. If the coefficients of 2nd,3rd and 4th terms in the (1+x)^(2n)are in A...

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  20. Vertices of /\XYZ are X(-2, -3),Y (6, 1), and Z(1, 6). Find the co-ord...

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