Home
Class 12
MATHS
Prove that (sin theta + sin 2 theta )/(1...

Prove that `(sin theta + sin 2 theta )/(1+cos 0 + cos 2 theta )= tan theta `

Text Solution

Verified by Experts

The correct Answer is:
`=(sin theta )/( cos theta )=tan theta `
Promotional Banner

Topper's Solved these Questions

  • TRIGONOMETRIC RATIONS, TRANSFORMATIONS

    SRISIRI PUBLICATION|Exercise VSAQ|51 Videos

  • TRIGONOMETRIC EQUATIONS

    SRISIRI PUBLICATION|Exercise SPQ|8 Videos

Similar Questions

Explore conceptually related problems

Prove that sin^(2) theta + cos^(2) theta =1

(sin 2 theta)/( 1+ cos 2 theta ) =

( sin 3 theta )/( sin theta ) -(cos 3 theta )/( cos theta )=

If 0 lt theta lt pi/2 , the solution of the equation sin theta - 3 sin 2 theta + sin 3 theta = cos theta - 3 cos 2 theta + cos 3 theta is

( cos 3 theta - sin 3 theta )/( cos theta+ sin theta ) =

Prove that (sin theta -cos theta+1 )/( sin theta + cos theta -1) =(1)/( sec theta -tan theta ) [use the identity sec ^(2) theta =1 +tan ^(2) theta ]

show that (1 + cos theta - sin^2 theta)/[(1 + cos theta)sin theta] = cot theta

Prove that (1 + sec theta) / sec theta = sin^2 theta /(1 - cos theta)

If sin theta + sin^(2) theta =1 , " then " cos^(2) theta + cos^(4) theta =

Prove that (sin theta - cos theta + 1)/(sin theta + cos theta - 1) = (1)/(sec theta - tan theta) using the identity sec^(2) theta = 1 + tan^(2) theta .

SRISIRI PUBLICATION-TRIGONOMETRIC RATIONS, TRANSFORMATIONS-LAQ
  1. If sin alpha =(3)/(5) , where (pi)/(2) lt alpha lt pi , evaluate cos ...

    Text Solution

    |

  2. If cos 0 =(-3)/(5) and pi lt 0 lt (3pi)/(2) , find the value of tan th...

    Text Solution

    |

  3. Prove that (sin theta + sin 2 theta )/(1+cos 0 + cos 2 theta )= tan th...

    Text Solution

    |

  4. If theta is not an integral multiple of (pi)/(2), prove that tan thet...

    Text Solution

    |

  5. Prove that tan 3A. tan2A.tanA = tan3A - tan 2A - tan A

    Text Solution

    |

  6. If cos theta gt 0, tan theta + sin theta =m and tan theta -sin theta =...

    Text Solution

    |

  7. If 0 lt A lt B lt (pi)/(4) and sin (A+B)=(24)/(25) and cos (A-B)= (4)/...

    Text Solution

    |

  8. If A+B, A are acute angles such that sin (A+B)=(24)/(25) and tan A=(3)...

    Text Solution

    |

  9. If tan (alpha- beta )= (7)/(24) and tan alpha =(4)/(3), where alpha an...

    Text Solution

    |

  10. In a Delta ABC, A is obtuse. If sin A=(3)/(5) and sin B=(5)/(13), the...

    Text Solution

    |

  11. In a Delta ABC, If tan .(A)/(2)=(5)/(6) and tan .(B)/(2) =(20)/(37), ...

    Text Solution

    |

  12. If cos alpha =(3)/(5) and cos beta =(5)/(13) and alpha, beta are acut...

    Text Solution

    |

  13. For any alpha in R, prove that cos ^(2) (alpha -(pi)/(4))+ cos ^(2) (a...

    Text Solution

    |

  14. For alpha , beta in R, prove that (cos alpha + cos beta )^(2)+ (sin al...

    Text Solution

    |

  15. If none of A,B, A+B is an integral multiple of pi, then prove that (1-...

    Text Solution

    |

  16. Prove that cos. (pi)/(11). cos . (2 pi)/(11). cos . (3 pi)/(11) cos. (...

    Text Solution

    |

  17. If A is not an integral multiple of (pi), prove that cos A cos 2A cos ...

    Text Solution

    |

  18. In a triangle ABC, If cot A+ cotB +cot C=sqrt3, then show that the tri...

    Text Solution

    |

  19. If none of the denominators is zero, prove that .

    Text Solution

    |

  20. If cos x+ cosy =(4)/(5) and cos x- cos y =(2)/(7), then the value of 1...

    Text Solution

    |