Home
Class 10
MATHS
Define an identity....

Define an identity.

Promotional Banner

Topper's Solved these Questions

  • TRIANGLES

    RD SHARMA|Exercise All Questions|361 Videos

  • TRIGONOMETRIC RATIOS

    RD SHARMA|Exercise All Questions|249 Videos

Similar Questions

Explore conceptually related problems

Define identity element for a binary operation defined on a set.

What is identity?

If the binary operation * on the set Z is defined by a a^(*)b=a+b-5, then find the identity element with respect to *

On the set Z of integers,if the binary operation * is defined by a*b=a+b+2 then find the identity element.

conditional identity

conditional identity

If the binary operation * on the set Z of integers is defined by a*b=a+b-5 then write the identity element for the operation * in Z .

If the binary operation ** on the set Z of integers is defined by a**b=a+b-5 , then write the identity element for the operation '**' in Z.

If * defined on the set R of real numbers by a*b=(3ab)/(7), find the identity element in R for the binary operation *

RD SHARMA-TRIGONOMETRIC IDENTITIES-All Questions
  1. If cos e c\ theta=(13)/(12) , find the value of (2sintheta-3\ cos\ ...

    Text Solution

    |

  2. If sintheta+costheta=sqrt(2)cos(90o-theta) , find cottheta .

    Text Solution

    |

  3. Define an identity.

    Text Solution

    |

  4. What is the value of (1-cos^2theta)cos e c^2theta ?

    Text Solution

    |

  5. What is the value of (1+cot^2theta)sin^2theta ?

    Text Solution

    |

  6. What is the value of sin^2theta+1/(1+tan^2theta) ?

    Text Solution

    |

  7. If sectheta+tantheta=x , write the value of sectheta-tantheta in te...

    Text Solution

    |

  8. If cos e ctheta-cottheta=alpha , write the value of cos e c\ theta+c...

    Text Solution

    |

  9. Write the value of cos e c^2(90o-theta)-tan^2theta .

    Text Solution

    |

  10. Write the value of sinAcos(90o-A)+cosAsin(90o-A) .

    Text Solution

    |

  11. Write the value of cot^2theta-1/(sin^2theta) .

    Text Solution

    |

  12. If x=asintheta and y=bcostheta , what is the value of b^2x^2+a^2y^2...

    Text Solution

    |

  13. If sintheta=4/5 , what is the value of cottheta+cos e c\ theta ?

    Text Solution

    |

  14. What is the value of 9cot^2theta-9cos e c^2theta ?

    Text Solution

    |

  15. What is the value of 6tan^2theta-6/(cos^2theta) ?

    Text Solution

    |

  16. What is the value of (tan^2theta-sec^2theta)/(cot^2theta-cos e c^2t...

    Text Solution

    |

  17. What is the value of (1+tan^2theta)(1-sintheta)(1+s in\ theta) ?

    Text Solution

    |

  18. If cosA=7/(25) , find the value of tanA+cotA .

    Text Solution

    |

  19. If sintheta=1/3 , then find the value of 2cot^2theta+2 .

    Text Solution

    |

  20. If costheta=3/4 , then find the value of 9tan^2theta+9 .

    Text Solution

    |