Home
Class 10
MATHS
Choose the correct option and justify yo...

Choose the correct option and justify your choice:(i)`(2 tan 30^@)/(1+tan^2 30^@)`

A

`sin60^@`

B

`cos60^@`

C

`tan60^@`

D

`sin30^@`

Text Solution

Verified by Experts

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

Choose the correct option and justify your choice:(iv) (2 tan 30^@)/(1-tan^2 30^@

Choose the correct option and justify your choice:(ii) (1-tan^2 45^@)/(1+tan^2 45^@)

Choose the correct option.Justify your choice:(iv) (1+tan^2A)/(1+cot^2A) =

Choose the correct option and justify your choice:(iii)sin 2A=2sin A is true when A=

Choose the correct option.Justify your choice:(i) 9 sec^2 A-9 tan^2 A a)1 b)9 c)8 d)0

Choose the correct option.Justify your choice:(ii) (1+tan theta+sec theta)(1+cot theta-cosectheta)=

Choose the correct option.Justify your choice:(iii) (secA+tanA)(1-sinA) = a)secA b)sinA c)cosecA d)cosA

Verify:a. Sin60^@=(2tan30^@)/(1+tan^2 30^@)

R G PUBLICATION-INTRODUCTION TO TRIGONOMETRY-EXERCISE
  1. Evaluate the following:(iv)(Sin30^@+tan45^@-Cosec60^@)/(Sec30^@+Cos60^...

    Text Solution

    |

  2. Evaluate the following:(v)(5cos60^@+4Sec30^@-tan^2 45^@)/(Sin^2 30^@+C...

    Text Solution

    |

  3. Choose the correct option and justify your choice:(i)(2 tan 30^@)/(1+t...

    Text Solution

    |

  4. Choose the correct option and justify your choice:(ii)(1-tan^2 45^@)/(...

    Text Solution

    |

  5. Choose the correct option and justify your choice:(iii)sin 2A=2sin A i...

    Text Solution

    |

  6. Choose the correct option and justify your choice:(iv)(2 tan 30^@)/(1-...

    Text Solution

    |

  7. If tan(A+B)=sqrt3 and tan(A-B)=1/sqrt3:find A and B.

    Text Solution

    |

  8. State whether the following are true or false.Justify your answer:(i)s...

    Text Solution

    |

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

    Text Solution

    |

  10. State whether the following are true or false. Justify your answer:(ii...

    Text Solution

    |

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

    Text Solution

    |

  12. State whether the following are true or false.Justify your answer:(v)c...

    Text Solution

    |

  13. Evaluate:(i)Sin18^@/Cos72^@

    Text Solution

    |

  14. Evaluate:(ii)tan26^@/Cot64^@

    Text Solution

    |

  15. Evaluate:(iii)Cos48^@-Sin42^@

    Text Solution

    |

  16. Evaluate:(iv)Cosec31^@-Sec59^@

    Text Solution

    |

  17. Show that:(i)tan48^@tan23^@tan42^@tan67^@=1

    Text Solution

    |

  18. Show that(ii)Cos38^@Cos52^@-Sin38^@Sin52^@=0

    Text Solution

    |

  19. If tan2A=cot(A-18^@)where 2A is an acute angle,find the value of A.

    Text Solution

    |

  20. If tanA=cotB,prove that A+B=90^@

    Text Solution

    |