Home
Class 10
MATHS
Without using Trigonometric Tables evalu...

Without using Trigonometric Tables evaluate the following :- `(sin^2 35^@+sin^2 55^@)/(tan10^@tan20^@tan30^@tan70^@tan80^@)` .

Promotional Banner

Topper's Solved these Questions

  • INTRODUCTION TO TRIGONOMETRY

    MBD|Exercise EXERCISE|176 Videos

  • COORDINATE GEOMETRY

    MBD|Exercise EXERCISE|64 Videos

  • PAIR OF LINEAR EQUATIONS IN TWO VARIABLES

    MBD|Exercise EXERCISE|183 Videos

Similar Questions

Explore conceptually related problems

Without using Trigonometric Tables evaluate the following :- (2cos65^@)/(sin25^@)-(tan20^@)/(cot70^@)-sin90^@+tan5^@tan35^@tan60^@tan55^@tan85^@ .

Without using Trigonometric Tables evaluate the following :- sec70^@sin20^@-cos20^@cosec70^@ .

Without using Trigonometric Tables evaluate the following :- (2sin68^@)/(cos22^@)-(2cot15^@)/(5tan75^@)-(3tan45^@tan20^@tan40^@tan70^@tan50^@)/5 .

Without using Trigonometric Tables evaluate the following :- (2cos67^@)/(sin23^@)-(tan40^@)/(cot50^@)-cos0^@+tan15^@tan25^@tan60^@tan65^@tan75^@ .

Without using Trigonometric Tables evaluate the following :- 3((sin36^@)/(cos54^@))^2 -2((tan18^@)/cot72^@)^3+2tan13^@tan21^@tan69^@tan77^@ .

Without using Trigonometric Tables evaluate the following :- 2[(cos^2 20^@+cos^2 70^@)/(sin^2 25^@+sin^2 65^@)]-tan45^@+tan13^@tan23^@tan30^@tan67^@tan77^ @

Without using Trigonometric Tables evaluate the following :- (sec^2 54^@-cot^2 36^@)/(cosec^2 57^@-tan^2 33^@) +2sin^2 38^@ sec^2 52^@-sin^2 45^@ .

Without using Trigonometric Tables evaluate the following :- ((tan20^@)/(cosec70^@))^2+((cot20^@)/sec70^@)+2tan15^@tan37^@tan53^@tan60^@tan75^@ .

Without using Trigonometric Tables evaluate the following :- (cosec^2 67^@-tan^2 23^@)/(sin^2 17^@+sin^2 73^@)+(sin59^@)/(cos31^@) .

Without using Trigonometric Tables evaluate the following :- (2cos38^@)/(sin52^@)+(4tan40^@)/(cot50^@)+(12sec66^@)/(cosec24^@)

MBD-INTRODUCTION TO TRIGONOMETRY-EXERCISE
  1. Evaluate : (sin70^@)/(cos 20^@)+(cosec36^@)/(sec54^@)-(2cos43^@cosec47...

    Text Solution

    |

  2. Without using Trigonometric Tables evaluate the following :- (sin^2 35...

    Text Solution

    |

  3. Without using Trigonometric Tables evaluate the following :- (sin^2 35...

    Text Solution

    |

  4. Without using Trigonometric Tables evaluate the following :- (sec^2 5...

    Text Solution

    |

  5. Without using Trigonometric Tables evaluate the following :- sec^2 10...

    Text Solution

    |

  6. Without using Trigonometric Tables evaluate the following :- (sec^2(90...

    Text Solution

    |

  7. If sin 3theta = cos (theta-6^@) where 3theta and theta-6^@ are acute...

    Text Solution

    |

  8. If sin A = cos B, both A and B are acute angles, find A + B.

    Text Solution

    |

  9. If cosec 2A = sec (A + 6^@) where 2A and A + 6^@ are acute angles find...

    Text Solution

    |

  10. If sin 5theta = cos 4theta where 5theta and 4theta are acute angles, f...

    Text Solution

    |

  11. If tan 2theta = cot 4theta where 2theta and 4theta are acute angles. F...

    Text Solution

    |

  12. If cos 3theta= sin (theta - 6^@) where 3theta and theta-6^@ are acute ...

    Text Solution

    |

  13. If A, B, C are interior angles of triangleABC, prove that :- sin((A+C)...

    Text Solution

    |

  14. If A, B, C are interior angles of triangleABC, prove that :- cos((B+C)...

    Text Solution

    |

  15. If A, B, C are interior angles of triangleABC, prove that :- cos^2(A/2...

    Text Solution

    |

  16. If A, B, C are interior angles of triangleABC, prove that :- 1+tan^2((...

    Text Solution

    |

  17. If A, B, C are interior angles of triangleABC, prove that :- 1+cot^2((...

    Text Solution

    |

  18. If A, B, C are interior angles of triangleABC, prove that :- tan((A+B...

    Text Solution

    |

  19. Match the following : .

    Text Solution

    |

  20. Prove that sec A (1 -sin A) (sec A + tan A) =1.

    Text Solution

    |