Home
Class 9
MATHS
.Solve the following equations: (i)\ 3^...

.Solve the following equations:
`(i)\ 3^(x+1)=27\ xx\ 3^4`
`\ (ii)4^(2x)=(16 3)^(-6/y)=(sqrt(8))^2`
`(iii)\ 3^(x-1)\ xx\ 5^(2y-3)=225`
`(iv)\ 8^(x+1)=16^(x+2)` and, `(v)\ (1/2)^(3+x)=(1/4)^(3y)`
(vi)`4^(x-1)\ xx\ (0. 5)^(3-2x)=(1/8)^x`
(vii)`sqrt(a/b)=(b/a)^(1-2x\ )` , where `a ,\ b` are distinct positive primes.

Promotional Banner

Topper's Solved these Questions

  • COORDINATE GEOMETRY

    RD SHARMA|Exercise All Questions|23 Videos
  • FACTORIZATION OF ALGEBRAIC EXPRESSIONS

    RD SHARMA|Exercise All Questions|226 Videos

Similar Questions

Explore conceptually related problems

Solve 3^(x-1)xx5^(2y-3)=225

solve for x,4^(x-1)xx(0.5)^(3-2x)=((1)/(8))^(-x)

Solve the following equations for x:4^(2x)=(1)/(32)( ii) 4^(x-1)x(0.5)^(3-2x)=((1)/(8))^(x)2^(3x-7)=256

Solve the following system of equations: (1)/(3x+y)+(1)/(3x-y)=(3)/(4),quad (1)/(2(3x+y))-(1)/(2(3x-y))=-(1)/(8)

Solve the following equations for X and Y : 2X-Y=[(3,-3,0),(3,3,2)], 2Y+X=[(4,1,5),(-1,4,-4)]

Which of the following are quadratic equations? (i) x^(2)-5x+3=0 (ii) 2x^(2)-3sqrt(2)x+6=0 (iii) 3x^(2)-2sqrtx+8=0 (iv) 2x^(2)-3=0 (v) x+(1)/(x)=x^(2) (vi) x^(2)+(1)/(x^(2))=4(1)/(4)

Solve the following equations : (i) log_(x)(4x-3)=2 (ii) log_2)(x-1)+log_(2)(x-3)=3 (iii) log_(2)(log_(8)(x^(2)-1))=0 (iv) 4^(log_(2)x)-2x-3=0

Solve the following equations where x in R a) (x-1)|x^(2)-4x+3|+2x^(2)+3x-5=0 b) |x^(2)+4x+3|+2x+=0 c) |x+3|(x+1)+|2x+5|=0

Solve the following simultaneous equations 1/(2(3x+4y)) + 1/(5(2x-3y))=1/4, 5/(3x+4y) - 2/(2x-3y) = -3/2

(i) (2x+3) (3x-5) (ii) x(1+x)^(3) (iii) (sqrtx + 1/x) (x -1/sqrtx) (iv) (x-1/x)^(2) (v) (x^(2) + 1/x^(2))^(3) (vi) (2x^(2) +5x-1) (x-3)

RD SHARMA-EXPONENTS OF REAL NUMBER-All Questions
  1. If 3^(4x)=(81)^(-1) and 10^(1/y)=0. 0001 , find the value of 2^(-x+4y)

    Text Solution

    |

  2. If 5^(3x)=\ 125\ and 10^y=0. 001 find x\ a n d\ y C

    Text Solution

    |

  3. .Solve the following equations: (i)\ 3^(x+1)=27\ xx\ 3^4 \ (ii)4^(...

    Text Solution

    |

  4. If a\ a n d\ b are distinct positive primes such that root(3)(a^6b^(-4...

    Text Solution

    |

  5. If a and b are different positive primes such that (i)\ ((a^(-1)\ b^2)...

    Text Solution

    |

  6. If 2^x\ 3^y\ 5^z=2160\ , find x ,\ y\ a n d\ z . Hence, compute the va...

    Text Solution

    |

  7. If 1176=2^a xx\ 3^bxx\ 7^c , find the values of a ,\ b\ a n d\ c . Hen...

    Text Solution

    |

  8. Simplify: (i)\ ((x^(a+b))/(x^c))^(a-b)\ ((x^(b+c))/(x^a))^(b-c)\ ((x...

    Text Solution

    |

  9. Show that: ((a+1/b)^m xx\ (a-1/b)^n)/((b+1/a)^m\ xx\ (b-1/a)^n)=(a/b)^...

    Text Solution

    |

  10. If a=x^(m+n)\ y^1,\ b-x^(n+l)\ y^m and c=x^(l+m)y^n , prove that a^(m-...

    Text Solution

    |

  11. If x=a^(m+n),\ y=a^(n+l) and z=a^(l+m) , prove that x^m y^n z^l=x^n y^...

    Text Solution

    |

  12. Write (625)^(-1/4) in decimal form

    Text Solution

    |

  13. State the product law of exponents.

    Text Solution

    |

  14. State the power law of exponents

    Text Solution

    |

  15. For any positive real number x , find the value of ((x^a)/(x^b))^(a+b)...

    Text Solution

    |

  16. Write the value of {5"("8^(-1/2)"}"^(-1/4)}^2

    Text Solution

    |

  17. For any positive real number x;write the value of {(x^a)^b}^(1/(ab)) {...

    Text Solution

    |

  18. If (x-1)^3=8, what is the value of (x+1)^2\ ?

    Text Solution

    |

  19. If 2^4\ xx\ 4^2=16^x , then find the value of x ?

    Text Solution

    |

  20. If 3^(x-1)=9 and 4^(y+2)=64 , what is the value of x/y\ ?

    Text Solution

    |