Home
Class 9
MATHS
If frac(xylog(xy))(x+y)=frac(yzlog(yz))(...

If `frac(xylog(xy))(x+y)=frac(yzlog(yz))(y+z)=frac(zxlog(zx))(z+x)` then show that `x^x=y^y=z^z`

Promotional Banner

Topper's Solved these Questions

  • LOGARITHMS

    KALYANI PUBLICATION|Exercise EXERCISE|122 Videos
  • INEQUALITIES AND INEQUATIONS

    KALYANI PUBLICATION|Exercise EXERCISE|126 Videos
  • MATHEMATICAL LOGIC

    KALYANI PUBLICATION|Exercise EXERCISE|290 Videos

Similar Questions

Explore conceptually related problems

If logx/(y-z)=logy/(z-x)=logz/(x-y) prove that xyz=1

If z=x+iy and |2z+1|=|z-3| ,then show that 3x^2+3y^2+10x=8 .

If x+y+z=6 , and xy+yz+zx=12 , then prove that x^3+y^3+z^3=3xyz

Prove that (x-y)^3+(y-z)^3+(z-x)^3=3(x-y)(y-z)(z-x)

Factorise (5x+3y+z)(15xy+3yz+5xz)-15xyz

Prove that |(y+z, x,y),(z+x, z, x),(x+y, y, z)| = (x+y+z)(x-z)^(2) .

Solve the following equations. frac(z) (z + 15) = frac(4)(9)

If a = x+y , b = y+z , and c = z+x then show that a^3+b^3+c^3-3abc =2(x^3+y^3+z^3-3xyz)

Simplify (y-z)^2(z-y)+(z-x)^2(x-z)+(x-y)^2(y-x)+3(y-z)(z-x)(x-y)

Factorise (x-y)^3+(y-z)^3+(z-x)^3

KALYANI PUBLICATION-LOGARITHMS-EXERCISE
  1. If logp/(b-c)=logq/(c-a)=logr/(a-b),then prove that p^a.q^b.r^c=1

    Text Solution

    |

  2. If logx/(a+b-2c)=logy/(b+c-2a)=logz/(a+c-2b), then prove that xyz=1

    Text Solution

    |

  3. If frac(xylog(xy))(x+y)=frac(yzlog(yz))(y+z)=frac(zxlog(zx))(z+x) then...

    Text Solution

    |

  4. If logx/(y-z)=logy/(z-x)=logz/(x-y) prove that xyz=1

    Text Solution

    |

  5. If (3.7)^x=(.37)^y=1000,then prove that 1/x-1/y=1/3

    Text Solution

    |

  6. If a^2+b^2=23ab,then prove that log((a+b)/5)=1/2(log a+log b)

    Text Solution

    |

  7. If x^2+y^2=7xy,then prove that log(x+y)=log3+1/2(logx+logy)

    Text Solution

    |

  8. If x^2+y^2=11xy,then prove that log((x+y)/13)=1/2(logx+logy)

    Text Solution

    |

  9. If a^2+b^2=18ab,then prove that log((a-b)/4)=1/2(loga+logb)

    Text Solution

    |

  10. If 4a^4+9b^4=37a^2b^2,then prove that log(2a^2+3b^2)=loga+logb+log7

    Text Solution

    |

  11. If 2log(a+b)=loga+logb+log8,then prove that (a+b)^2=8ab

    Text Solution

    |

  12. If log((x+y)/3)=1/2(logx+logy),then prove that x/y+y/x=7

    Text Solution

    |

  13. If log((a+2b)/4)=1/2(loga+logb),then prove that a^2+4b^2=12ab

    Text Solution

    |

  14. If log((x+y)/2)=1/2(logx+logy),then prove that x=y

    Text Solution

    |

  15. Given that log10 2=.3010,log10 3=.4771,log10 4=.6021,log10 5-.6990,log...

    Text Solution

    |

  16. Given that log10 2=.3010,log10 3=.4771,find the value of log10 12

    Text Solution

    |

  17. Given that log10 2=.3010,log10 3=.4771,log10 4=.6021,log10 5-.6990,log...

    Text Solution

    |

  18. Given that log10 2=.3010,log10 3=.4771,log10 4=.6021,log10 5-.6990,log...

    Text Solution

    |

  19. Given that log10 2=.3010,log10 3=.4771,then find the value of log10 (...

    Text Solution

    |

  20. Given that log10 2=.3010,log10 3=.4771,log10 4=.6021,log10 5-.6990,log...

    Text Solution

    |