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The conjugate of 1/(2+i) is...

The conjugate of `1/(2+i)` is

A

`(2+i)/5`

B

`(2-i)/5`

C

`(i-2)/5`

D

`-(2+i)/5`

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JBD PUBLICATION-MODEL PAPER (7)-EXERCISE
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  3. The conjugate of 1/(2+i) is

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  7. The equation of the parabola with focus at (0, 3) and the directrix y ...

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  8. underset(xrarr5)lim (|x-3|)/(x-3) is equal to:

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  9. If A and B are events such that P(A) = 0.42, P(B) = 0.48 and P(A cap B...

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  10. The minute hand of a watch is 1.5 cm long. How many cm does its extrem...

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  11. Prove that: 2 sin^2(3pi)/4+2cos^2pi/4+2s e c^2pi/3=10

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  12. 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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  13. Using Binomial theorem, prove that 6^(n)-5n always leaves remainder 1...

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  14. Write the middle term of (x-1/x)^(2n).

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  15. Find the equation of the set of points P, the sum of whose distance fr...

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  17. Find out which of the following sentences are statements and which are...

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

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

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