Home
Class 12
MATHS
The curve y=2e^(2x) intersect the y-axis...

The curve `y=2e^(2x)` intersect the `y`-axis at an angle `cot^(-1)|(8n-4)/3|` then the positive value of `n` is

Text Solution

Verified by Experts

The correct Answer is:
2

`y=2e^(2x)` intersect `y` axis at `(0,2)`
`(dy)/(dx)=4e^(2x):.(dy)/(dx):|_("at"x=0)=4`
`:.` Angle of intersection with `y`-axis `=(pi)/2-tan^(-1)4=cot^(-1)4`
`:.n=2,-1`
Promotional Banner

Topper's Solved these Questions

  • TEST PAPERS

    RESONANCE ENGLISH|Exercise Math|105 Videos
  • TEST PAPER

    RESONANCE ENGLISH|Exercise MATHEMATICS|48 Videos
  • TEST SERIES

    RESONANCE ENGLISH|Exercise MATHEMATICS|132 Videos

Similar Questions

Explore conceptually related problems

Find the angle at which the curve y=K e^(K x) intersects the y-axis.

Find the angle at which the curve y=K e^(K x) intersects the y-axis.

If the curves y^2=6x , 9x^2+by^2=16 intersect each other at right angles then the value of b is: (1) 6 (2) 7/2 (3) 4 (4) 9/2

If A(n) represents the area bounded by the curve y=n*ln x ,where n in N and n >1, the x-axis and the lines x=1 and x=e , then the value of A(n)+n A(n-1) is equal to a. (n^2)/(e+1) b. (n^2)/(e-1) c. n^2 d. en^2

If the area enclosed by the curve y=min. {x^3, |x-2|, e^(3-x)} , x-axis, y-axis and x=4 is Delta , then the value of 4(Delta+1/e) is equal to…..

Tangent is drawn at the point (x_(i), y_(i)) on the curve y = f(x), which intersects the x-axis at (x_(i+1), 0) . Now again tangent is drawn at (x_(i+1), y_(i+1)) on the curve which intersects the x-axis at (x_(i+2), 0) and the process is repeated n times i.e. i = 1, 2, 3,......,n. If x_(1), x_(2), x_(3),...,x_(n) form a geometric progression with common ratio equal to 2 and the curve passes through (1, 2), then the curve is

If the lines joining the origin to the intersection of the line y=nx+2 and the curve x^2+y^2=1 are at right angles, then the value of n^2 is

The line L_1-=4x+3y-12=0 intersects the x-and y-axies at Aa n dB , respectively. A variable line perpendicular to L_1 intersects the x- and the y-axis at P and Q , respectively. Then the locus of the circumcenter of triangle A B Q is (a) 3x-4y+2=0 (b) 4x+3y+7=0 (c) 6x-8y+7=0 (d) none of these

The normal to the curve y(x-2)(x-3)=x+6 at the point where the curve intersects the y-axis , passes through the point : (1) (1/2,-1/3) (2) (1/2,1/3) (3) (-1/2,-1/2) (4) (1/2,1/2)

The normal to the curve y(x-2)(x-3)=x+6 at the point where the curve intersects the y-axis , passes through the point : (1) (1/2,-1/3) (2) (1/2,1/3) (3) (-1/2,-1/2) (4) (1/2,1/2)

RESONANCE ENGLISH-TEST PAPERS-MATHEMATICS
  1. If f (x)=(4+x )^(n), n in N and f'(0) represents then r^(th) derivativ...

    Text Solution

    |

  2. Let f(x)=x/(1+x^2) and g(x)=(e^(-x))/(1+[x]) (where [.] denote greates...

    Text Solution

    |

  3. If the derivative of an odd cubic polynomial vanishes at two different...

    Text Solution

    |

  4. f (x)= {{:(3+|x-k|"," , x le k),(a ^(2) -2 + ( sin (x -k))/((x-k))"," ...

    Text Solution

    |

  5. Find the critical (stationary ) points of the function f(X)=(x^(5))/(2...

    Text Solution

    |

  6. If curve y=1-ax^(2) and y=x^(2) intersect orthogonally then a is

    Text Solution

    |

  7. If the relation between subnormal SN and subtangent ST on the curve, b...

    Text Solution

    |

  8. Find the point on the curve y=x^3-11 x+5 at which the tangent is y"...

    Text Solution

    |

  9. Find the equation of tangent to the hyperbola 16x^(2)-25y^(2)=400 perp...

    Text Solution

    |

  10. Find the rate of change of volume of a sphere with respect to its s...

    Text Solution

    |

  11. ((2x+3y)/5)+(2f(x)+3f(y))/5 and f^(')(0)=p and f(0)=q. Then f^(")(0) i...

    Text Solution

    |

  12. If the function f(x)=-4e^((1-x)/2)+1+x+(x^2)/2+(x^3)/3a n dg(x)=f^(-1)...

    Text Solution

    |

  13. If f''(x) =- f(x) and g(x) = f'(x) and F(x)=(f((x)/(2)))^(2)+(g((x)/(2...

    Text Solution

    |

  14. The curve y=2e^(2x) intersect the y-axis at an angle cot^(-1)|(8n-4)/3...

    Text Solution

    |

  15. If a , b are two real numbers with a<b then a real number c can be fo...

    Text Solution

    |

  16. If the slope of the line through the origin which is tangent to the cu...

    Text Solution

    |

  17. If the curve C in the xy plane has the equation x^(2)+xy+y^(2)=1, then...

    Text Solution

    |

  18. Let the parabolas y=x(c-x)a n dy=x^2+a x+b touch each other at the poi...

    Text Solution

    |

  19. The point on the curve 3y=6x-5x^(3) the normal at which passes through...

    Text Solution

    |

  20. A curve is given by the equations x=sec^2theta,y=cotthetadot If the ta...

    Text Solution

    |