Home
Class 10
MATHS
Find the values of :c.6cos^2 45^@-18cot^...

Find the values of :c.`6cos^2 45^@-18cot^2 60^@+3sec60^@`

Promotional Banner

Topper's Solved these Questions

  • INTRODUCTION TO TRIGONOMETRY

    R G PUBLICATION|Exercise EXERCISE|95 Videos

  • CONSTRUCTIONS

    R G PUBLICATION|Exercise EXERCISE|1 Videos

  • MODEL PAPER 1

    R G PUBLICATION|Exercise EXERCISE|35 Videos

Similar Questions

Explore conceptually related problems

The value of sec^2 10^@-cot^2 80^@ is

Find the values of :d. (5sin^2 30^@+cos^2 45^@+4tan^2 60^@)/(2sin30^@cos60^@+tan45^@)

Find the value of: sec^2(tan^-1(2))

Find the values of :b. tan^2 30^@+tan^2 45^@+tan^2 60^@

Verify:b. 2cos^2 45^@=cos^2 60^@+cos^2 30^@

Find the values of :a. sin60^@ cos30^@+cos60^@sin30^@

Find the principal value of sec^-1 2

By what number should sin45^@cos45^@tan60^@ be multiplied to get the value of tan^2 45^@-cos^2 60^@ ?

The value of Sec^4A-Sec^2A is

Find the value of (sin^3(360^@+45^@)tan(180^@-45^@)sec^2(-45^@))/(cos^2(270^@+45^@)cosec^2(180^@+45^@)sin(-45^@))

R G PUBLICATION-INTRODUCTION TO TRIGONOMETRY-EXERCISE
  1. Find the values of :c.6cos^2 45^@-18cot^2 60^@+3sec60^@

    Text Solution

    |

  2. IftriangleABCright-angled at B,AB=24cm,BC=7cm.Determine:(i)sinA,cosA

    Text Solution

    |

  3. IntriangleABCright-angled at B,AB=24cm,BC=7cm.Determine:(ii)sinC,cosC

    Text Solution

    |

  4. InFig.8.13,find tanP-cot R

    Text Solution

    |

  5. If sinA=3/4,calculate cosA and tanA

    Text Solution

    |

  6. Given 15 cotA=8,find sin A and sec A.

    Text Solution

    |

  7. Givensectheta=13/12,calculate all other trigonometric ratios.

    Text Solution

    |

  8. If angleA and angle B are acute such that cosA=cosB,then show that ang...

    Text Solution

    |

  9. If cottheta=7/8evaluate:(i)((1+sintheta)(1-sintheta))/((1+costheta)(1-...

    Text Solution

    |

  10. If cottheta=7/8evaluate:(ii)cot^2 theta

    Text Solution

    |

  11. If 3 cotA=4,check whether(1-tan^2A)/(1+tan^2A)=Cos^2A-Sin^2A or not.

    Text Solution

    |

  12. In triangle ABC,right-angled at B if tanA=1/sqrt3,find the value of:(i...

    Text Solution

    |

  13. In triangle ABC,right-angled at B if tanA=1/sqrt3,find the value of:(i...

    Text Solution

    |

  14. In trianglePQR,right-angled at Q,PR+QR=25cm and PQ=5cm.Determine the v...

    Text Solution

    |

  15. State whether the following are true or false.Justify your answer.(i)T...

    Text Solution

    |

  16. State whether the following are true or false.Justify your answer.(ii)...

    Text Solution

    |

  17. State whether the following are true or false.Justify your answer.(iii...

    Text Solution

    |

  18. State whether the following are true or false.Justify your answer.(iv)...

    Text Solution

    |

  19. State whether the following are true or false.Justify your answer.(v)s...

    Text Solution

    |

  20. Evaluate the following:(i)sin 60^@ cos30^@+sin 30^@ cos 60^@

    Text Solution

    |

  21. Evaluate the following:(ii)2 tan^@ 45^@+cos^2 30^@-sin^2 60^@

    Text Solution

    |