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Square root of -3 -4i is...

Square root of `-3 -4i` is

A

`pm (1 +2 i)`

B

`pm (1 - 2i)`

C

`pm (-1 -2i)`

D

`pm (2 + i)`

Text Solution

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The correct Answer is:
B
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KCET PREVIOUS YEAR PAPERS-MODEL TEST PAPER 3-(MATHEMATICS)
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  3. Square root of -3 -4i is

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  8. The line x-y + k =0 is normal to the ellipse (x^2)/(9) + (y^2)/(16)=1,...

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  9. The equation of the circle whose radius is 3 and touches internally wi...

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  10. The radical centre of the circle x^2 + y^2 + 4x + 7 =0, 2 x^2 + 2y^2 +...

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  11. The angles between the circle x^2 + y^2 -2x - 6y - 39=0 and x^2 + y^2 ...

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  12. The equation to pair of lines perpendicular to x^2 + 3xy + 2y^2 =0 and...

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  13. The line x+y -2 =0 cuts the axes at A and B, then the incentre of tria...

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  14. A and B are two variable points on x and y axes such that OA +OB= 1//2...

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  15. If p, q,r are in A. P. then the line px + qy + r=0 passes through a fi...

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  16. If the axes are rotated through an angles 30° in the anticlockwise dir...

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  17. The locus of a point which is equidistant from ( a+ b , a-b) and (a-b,...

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  18. If (5, 1) is a circumcentre and (7, 5) is the centroid of a triangle, ...

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  19. In a triangle ABC, D (1,2) and F(2,3) are the mid points of BC and AB ...

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  20. The angle between the asymptotes of the hyperbola 2x^(2) -4y^(2)=1 is

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