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The circles x^(2) + y^(2) + x + y = 0 an...

The circles `x^(2) + y^(2) + x + y = 0 and x^(2) + y^(2)+ x - y = 0` intersect at an angle of

A

`pi//6`

B

`pi//4`

C

`pi//3`

D

`pi//2.`

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The correct Answer is:
D
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KCET PREVIOUS YEAR PAPERS-MODEL TEST PAPER - 8-MATHEMATICS
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  2. The locus of the midpoint of a chord of the circle x^(2)+y^(2) = 4 whi...

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  3. The circles x^(2) + y^(2) + x + y = 0 and x^(2) + y^(2)+ x - y = 0 int...

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  4. If the radical axis of the circles x^(2)+y^(2)+2gx + 2fy + c = 0 and...

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  5. The slope of the tangent at the point (h, h) of the circle x^(2) + y^(...

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  6. If the vertex of a parabola is the point (-3, 0) and the directrix is ...

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  7. The vertex of a parabola is the point (a, b) and latus-rectum is of le...

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  8. The equation to the ellipse (referred to its axes as the axes of x and...

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  9. The locus of the middle point of the portion of a tangent to the ellip...

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  10. The equations to the common tangents to the two hyperbolas (x^(2))/(a^...

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  11. The vectors 2overset(hat)i + 3 overset(hat)j-4overset(hat)kand aoverse...

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  12. If veca .vecb = veca.vec cand veca xx vecb = veca xx vec c,veca ne0, t...

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  13. If vecp = veca - vecb , vecq = vec a + vec b and |veca| = |vecb| = 2 ...

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  14. Let a = hat I + hatj +hatk, vec b = hati-hatj+hatk and c be a unit vec...

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  15. The value of underset(x rarr0)limsqrt((1)/(2)(1-cos2x))/(x) is

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  16. If f (x) =((x^(2)+5x+3^(x))/(x^(2)+x+2)) then underset(x rarroo)limf(x...

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  17. If y = cos^(-1) ((2cos x - 3 sin x)/(sqrt(13))),then (dy)/(dx) is

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  18. The derivative of sec^(-1)((1)/(2x^(2)-1)) with respect to sqrt(1-x^(2...

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  19. The abscissa of the point on the curve ay^(2)=x^(3), the normal at whi...

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  20. If y = a logx + bx^(2) + x has its extremum value at x = -1 and x = 2,...

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