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Find the equation of tangents to the cur...

Find the equation of tangents to the curve `y=cos(x+y),-2pilt=xlt=2pi` that are parallel to the line `x+2y=0.`

A

`x+2y=1`

B

`x+2y=(pi)/(2)`

C

`x+2y=(pi)/(4)`

D

none of these

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The correct Answer is:
B
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OBJECTIVE RD SHARMA ENGLISH-TANGENTS AND NORMALS-Exercise
  1. Find the euation of normal to the curve x=a( cos theta + theta sin th...

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  2. The point P of the curve y^(2)=2x^(3) such that the tangent at P is p...

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  3. Find the equation of tangents to the curve y=cos(x+y),-2pilt=xlt=2pi t...

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  4. The equation of the tangents at the origin to the curve y^2=x^2(1+x) a...

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  5. The coordinates of the points on the curve x=a(theta + sintheta), y=a(...

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  6. The chord joining the points where x= p and x= q on the curve y= ax^2 ...

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  7. Find the locus of point on the curve y^2=4a(x+asin (x/a)) where tangen...

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  8. At what points on the curve y=x^2-4x+5 is the tangent perpendicu...

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  9. The points of contact of the tangents drawn from the origin to the cur...

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  10. If the area of the triangle included between the axes and any tangent ...

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  11. The tangents to the curve x=a(theta - sin theta), y=a(1+cos theta) at ...

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  12. The slope of the tangent to the curve y=sin^(-1) (sin x) " at " x=(3pi...

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  13. The slope of the tangent to the curve y=cos^(-1)(cos x) " at " x=-(...

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  14. The equation of the tangent to the curve y=e^(-|x|) at the point wher...

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  15. The number of points on the curve y=x^(3)-2x^(2)+x-2 where tangents ar...

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  16. The angle between the tangents to the curve y=x^2-5x+6 at the point (2...

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  17. The slope of the tangent to the curve y =sqrt(9-x^(2)) at the point wh...

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  18. The slope of the tangent to the curve y=x^(2) -x at the point where th...

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

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  20. The curve given by x+y=e^(x y) has a tangent parallel to the y-axis at...

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