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Equation of the tangent at theta=pi//4 t...

Equation of the tangent at `theta=pi//4` to the curve `x=a cos2theta,y=2sqrt(2)asintheta` is

A

`x+y=a`

B

`x+y=2a`

C

`y=x+2a`

D

none

Text Solution

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The correct Answer is:
B
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DIPTI PUBLICATION ( AP EAMET)-APPLICATIONS OF DIFFERENTIATION-EXERCISE 1B (TANGENT AND NORMAL)
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  12. the equation of the normal to the curve y=(6x)/(x^2-1) at (2,4) is

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  17. The equation of the normal to the curve x^2/a^2+y^2/b^2=1 at (acosthet...

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  18. The equation of the normal to the curve (x/a)^4+(y/b)^4=2 at (a,b) is

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  19. The equation of the normal to the curve (x/a)^(2//3)+(y/b)^(2//3)=1 at...

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  20. The equation of the normal to the curve x=a(theta-sintheta),y=a(1-cost...

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