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If a + ib = ((x+i)^2)/(2x^2+1), prove th...

If `a + ib = ((x+i)^2)/(2x^2+1)`, prove that `a^2+b^2 =((x^2+1)^2)/((2x^2+1)^2)`.

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JBD PUBLICATION-MODEL PAPER (7)-EXERCISE
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  2. Prove that: 2 sin^2(3pi)/4+2cos^2pi/4+2s e c^2pi/3=10

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  3. If a + ib = ((x+i)^2)/(2x^2+1), prove that a^2+b^2 =((x^2+1)^2)/((2x^2...

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  9. Write each of the statement in the form if p and then q p: It is nec...

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  10. Write each of the following statements in the form "if p then q" q: Th...

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  11. Taking the set of natural numbers as the universal set, write down the...

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  12. Find the domain of the function f(x)= (x^2+2x+1)/(x^2-8x+12).

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  13. If cosx=-1/3, x lies in IIIrd quadrant, find the value of sinx/2, cosx...

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  14. Find the value of tanpi/8.

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  15. 1.3+3.5+5.7+......+(2n-1)(2n+1)=(n(4n^2+6n-1))/(3)

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  16. Determine n if "^(2n)C3 : "^nC3 = 11 : 1

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  17. In an A.P., if p^(th) term is 1/q and q^(th) term is 1/p, prove that t...

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  18. Find angles between the lines sqrt(3)x+y=1 and x+sqrt(3)y=1.

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  19. Find the equation of a circle passing through the points (5, 7), (6, 6...

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  20. Evaluate: underset(xrarr0)lim (e^(log(1+2x)))/x

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