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Recent questions tagged p139

The slope of tangent o the curve $x=t^2+3t-8,y=2t^2-2t-5$ at the point (2,-1) is :\[(A)\;\frac{22}{7}\quad(B)\;\frac{6}{7}(C)\;{-6}{7}\quad(D)\;-6\]

asked Jan 11, 2013 by sreemathi.v

1 answer

The tangent to the curve $y=e^{2x}$ at the point $(0,1)$ meets x-axis at:

asked Jan 11, 2013 by sreemathi.v

1 answer

The points at which the tangents to be curve $y=x^3-12x+18$ are parallel to x-axis are:

asked Jan 11, 2013 by sreemathi.v

1 answer

The equation of tangent to the curve $y(1+x^2)=2-x,$where it crosses x-axis is \[\begin{array}{1 1}(A)\;x+5y=2 & (B)\;x-5y=2\\(C)\;5x-y=2 & (D)\;5x+y=2\end{array}\]

asked Jan 11, 2013 by sreemathi.v

1 answer

If $y=x^4-10$ and if x changes from $2$ to $1.99$,what is the change in y

asked Jan 11, 2013 by sreemathi.v

1 answer

If the curve $ay+x^2=7$ and $x^3=y,$ cut orthogonally at $(1,1)$ then the value of a is

asked Jan 11, 2013 by sreemathi.v

1 answer

The equation of normal to the curve $3x^2-y^2=8$ which is parallel to the line x+3y=8 is\begin{array}{1 1}(A)\;3x-y=8 & (B)\;3x+y+8=0\\(C)\;x+3y-8=0 & (D)\;x+3y=0\end{array}

asked Jan 11, 2013 by sreemathi.v

1 answer

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