Home
Class 9
MATHS
Evaluate each of the following using ide...

Evaluate each of the following using identities: `(1. 5 x^2-0. 3 y^2)\ \ (1. 5 x^2+0. 3 y^2)`

Text Solution

AI Generated Solution

Promotional Banner

Topper's Solved these Questions

  • AREA OF PARALLELOGRAMS AND TRIANGLES

    RD SHARMA ENGLISH|Exercise All Questions|206 Videos

Similar Questions

Explore conceptually related problems

Evaluate each of the following using identities: (i) (2x-1/x)^2 (ii) (2x+y)(2x-y)

If x=3\ a n d\ y=-1, find the values of each of the using identity: (9y^2-4x^2)(81 y^4+36 x^2y^2+16 x^4)

Find each of the following products: (i) (-5x y)xx(-3x^2y z) (ii) 1/2x y\ xx2/3x^2y z^2

If x=3\ a n d\ y=-1, find the values of each of the using identity: (5/x+5x)((25)/(x^2)-25+25 x^2)

If x=3\ a n d\ y=-1, find the values of each of the using identity: (x/4-y/3)\ ((x^2)/(16)+(x y)/(12)+(y^2)/9)

If x=1 and y=2, find the values of each of the following algebraic expressions: (i) 2x+3\ (ii) 3x-5y

If x=3\ a n d\ y=-1, find the values of each of the using identity: (x/7+y/3)((x^2)/(49)+(y^2)/9-(x y)/(21))

Find the centre and radius of each of the following circle : (i) x^(2)+y^(2)+4x-4y+1=0 (ii) 2x^(2)+2y^(2)-6x+6y+1=0 (iii) 2x^(2)+2y^(2)=3k(x+k) (iv) 3x^(2)+3y^(2)-5x-6y+4=0 (v) x^(2)+y^(2)-2ax-2by+a^(2)=0

Multiply each of the monomial : 3/4x^2y z^2,\ 0. 5 x y^2z^2,\ 1. 16 x^2y z^3,\ 2x y z

Find the angle between the following pairs of lines : (i) x+2y-1=0 and 2x-y+3=0 (ii) y=5x+1 and y=-3x+2

RD SHARMA ENGLISH-ALGEBRAIC IDENTITIES-All Questions
  1. Evaluate each of the following using identities: (i)(2x-1/x)^2 (ii...

    Text Solution

    |

  2. Evaluate each of the following using identities: (i)(a^2b-b^2a)^2 ...

    Text Solution

    |

  3. Evaluate each of the following using identities: (1. 5 x^2-0. 3 y^2)\...

    Text Solution

    |

  4. Evaluate each of the following using identities: (i)(399)^2(ii) (0. 98...

    Text Solution

    |

  5. Evaluate each of the following using identities: (i)991\ xx\ 1009 (ii)...

    Text Solution

    |

  6. Simplify each of the following: 175\ xx\ 175+2\ xx\ 175\ xx\ 25+25\ xx...

    Text Solution

    |

  7. Simplify each of the following: 322\ xx\ 322-2\ xx\ 322\ xx\ 22+22\ xx...

    Text Solution

    |

  8. Simplify each of the following: 0. 76\ xx\ 0. 76+2\xx\ 0. 76\ xx\ 0. 2...

    Text Solution

    |

  9. Simplify each of the following: (7. 83\ xx\ 7. 83-1. 17\ xx\ 1. 17)/(6...

    Text Solution

    |

  10. If x+1/x=11 , find the value of x^2+1/(x^2)

    Text Solution

    |

  11. If x-1/x=\ -1, find the value of x^2+1/(x^2)

    Text Solution

    |

  12. If x+1/x=sqrt(5) , find the values of x^2+1/(x^2) and x^4+1/(x^4)

    Text Solution

    |

  13. If x^2+1/(x^2)=66 , find the value of x-1/x

    Text Solution

    |

  14. If x^2+1/(x^2)=79 , find the value of x+1/x

    Text Solution

    |

  15. If 9x^2+25 y^2=181\ \ a n d\ x y\ =\ -6, find the value of 3x+5y

    Text Solution

    |

  16. If 2x+3y=8 and x y=2 , find the value of 4x^2+9y^2

    Text Solution

    |

  17. If 3x-7y=10\ and x y=-1, find the value of 9x^2+49 y^2

    Text Solution

    |

  18. Simplify each of the products: (1/2a-3b)(3b+1/2a)(1/4a^2+9b^2)

    Text Solution

    |

  19. Simplify each of the products: (m+n/7)^3\ (m-n/7)

    Text Solution

    |

  20. Simplify each of the products: (x/2-2/5)(2/5-x/2)-x^2+2x

    Text Solution

    |