Home
Class 12
MATHS
Let ** be a binary operation, on the set...

Let `**` be a binary operation, on the set of all-zero real numbers, given by a `a**b=(a b)/5` for all `a, b in R-{0}`. Find the value of `x`. given that `2**(x**5)=10.`

Promotional Banner

Topper's Solved these Questions

  • CUET MOCK TEST 2022

    XII BOARDS PREVIOUS YEAR|Exercise Question|49 Videos

Similar Questions

Explore conceptually related problems

Let t be a binary operation,on the set of all non-zero real numbers,given by a*b=(ab)/(5) for all a,b in R-{0}. Write the value of x given by 2*(x*5)=10

Let * be a binary operation on the set Q of all rational number given as a*b= (2a-b)^(2) for all a,b in Q find 3*5 and 5*3 Is 3*5=5*3?

Let t be a binary operation on Q_(0)( set of non- zero rational numbers) defined by a*b=(3ab)/(5) for all a,b in Q_(0) Find the identity element.

Let *, be a binary operation on N, the set of natural numbers defined by a*b = a^b, for all a,b in N. is * associative or commutative on N?

Let * be a binary operation on N, the set of natural numbers, defined by a*b= a^b for all a , b in Ndot Is '*' associative or commutative on N ?

Let 'o' be a binary operation on the set Q_0 of all non-zero rational numbers defined by a\ o\ b=(a b)/2 , for all a ,\ b in Q_0 . Show that 'o' is both commutative and associate (ii) Find the identity element in Q_0 (iii) Find the invertible elements of Q_0 .

Let R be the relation on the set R of all real numbers defined by a Rb Iff |a-b|<=1 Then R is

Let '*' be a binary operation on Q_0 (set of all non-zero rational numbers) defined by a*b=(a b)/4 for all a , b in Q_0dot Then, find the identity element in Q_0 inverse of an element in Q_0dot

XII BOARDS PREVIOUS YEAR-BOARD PAPER SOLUTIONS-All Questions
  1. Find the intervals in which the function f(x)=3x^4-4x^3-12 x^2+5 is (a...

    Text Solution

    |

  2. Assume that each born child is equally likely to be a boy or ...

    Text Solution

    |

  3. Let ** be a binary operation, on the set of all-zero real numbers, giv...

    Text Solution

    |

  4. If 2[3 4 5x]+[1y0 1]=[7 0 10 5], find (x-y)dot

    Text Solution

    |

  5. If "sin"(sin^(-1)\ 1/5+cos^(-1)x)=1, then find the value of xdot

    Text Solution

    |

  6. If |[2x,5],[ 8,x]|=|[6,-2],[ 7, 3]|, write the value of x

    Text Solution

    |

  7. Solve the following matrix equation for x : ,[x1][1 0-2 0]-Odot

    Text Solution

    |

  8. Evaluate : int0^3(dx)/(9+x^2)

    Text Solution

    |

  9. Write the antidervative of (3sqrt(x)+1/(sqrt(x)))dot

    Text Solution

    |

  10. If vec a and vec b are two unit vectors such that vec a+ vec b is a...

    Text Solution

    |

  11. Find the projection of the vector hat i+3 hat j+7 hat k on the vector...

    Text Solution

    |

  12. Show that the lines (x+1)/3=(y+3)/5=(z+5)/7 and (x-2)/1=(y-4)/3=(z-6)/...

    Text Solution

    |

  13. Find the equations of the tangent and normal to the curve x=asin^3t...

    Text Solution

    |

  14. Evaluate : int(pi/6)^(pi/3)(dx)/(1+sqrt(cotx))

    Text Solution

    |

  15. Show that the semi-vertical angle of the cone of the maximum volume an...

    Text Solution

    |

  16. Prove that cot^(-1)((sqrt(1+sin)+sqrt(1-sinx))/(1sqrt(1+sin)-sqrt(1...

    Text Solution

    |

  17. Prove that 2tan^(-1)(1/5)+sec^(-1)((5sqrt(2))/7)+2tan^(-1)(1/8)=pi/4...

    Text Solution

    |

  18. Prove that, for any three vectors vec a , vec b , vec c [ vec a+ v...

    Text Solution

    |

  19. Vector vec a , vec b and vec c are such that vec a+ vec b+ vec c...

    Text Solution

    |

  20. The sum of the perimeters of a circle and a square is k , where k is s...

    Text Solution

    |