Home
Class 12
MATHS
Prove that, (1+cosA+cos2A)/(sin A+sin2A)...

Prove that, `(1+cosA+cos2A)/(sin A+sin2A)=cotA`

Promotional Banner

Topper's Solved these Questions

  • TRIGONOMETRIC RATIOS OF MULTIPLE ANGLES

    CHHAYA PUBLICATION|Exercise Long Answer Type Questions|30 Videos

  • TRIGONOMETRIC RATIOS OF MULTIPLE ANGLES

    CHHAYA PUBLICATION|Exercise Multiple Correct Answere Type|5 Videos

  • TRIGONOMETRIC RATIOS OF MULTIPLE ANGLES

    CHHAYA PUBLICATION|Exercise Very Short Answer Type Questions|12 Videos

  • TRIGONOMETRIC RATIOS OF COMPOUND ANGLES

    CHHAYA PUBLICATION|Exercise Comprehension Type|6 Videos

  • TRIGONOMETRIC RATIOS [OR FUNCTIONS] OF POSITIVE ACUTE ANGLES

    CHHAYA PUBLICATION|Exercise Sample Questions for Competitive Exams (Assertion -Reason Type )|2 Videos

Similar Questions

Explore conceptually related problems

Prove that, CotA= sqrt((1-sin^2A)/sin^2A)

Prove that (cosA-cosB)^2+(sin A-sin B)^2=4sin^2((A-B)/2)

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

Prove that (1+secA)/secA=sin^2A/(1-cosA) .

Prove that, SinA/(1-cosA) =CosecA+cotA

Prove that, (1+ cos 2 alpha + sin 2 alpha)/(1-cos 2 alpha +sin 2 alpha)=cot alpha

It (cos^4A)/(cos^2B)+(sin^4A)/(sin^2B)=1 then show that (cos^4B)/(cos^2A)+(sin^4B)/(sin^2A)=1

Prove that (sin3A+sinA)sinA+(cos3A-cosA)cosA=0

Prove that (sinA+sin3A)/(cosA+cos3A)=tan2A .

prove that (sinA+sin3A+sin5A+sin7A)/(cosA+cos3A+cos5A+cos7A)=tan4A

CHHAYA PUBLICATION-TRIGONOMETRIC RATIOS OF MULTIPLE ANGLES-Short Answer Type Questions
  1. Prove that, (sec 8 alpha -1)/(sec 4 alpha-1)= (tan 8 alpha)/(tan 2 alp...

    Text Solution

    |

  2. Prove that, cos 4 x - cos4 y = 8(cos x - cos y)(cos x + cos y)(cos x -...

    Text Solution

    |

  3. Prove that, (1+cosA+cos2A)/(sin A+sin2A)=cotA

    Text Solution

    |

  4. Prove that, (tan 5 A + tan 3 A)/(tan 5 - tan 3 A)=4 cos 4 A cos2 A

    Text Solution

    |

  5. Prove that, (cos30^(@) - sin 20^(@))/(cos 40^(@) + cos20^(@)) = 4/sqrt...

    Text Solution

    |

  6. Prove that, 4 (cos^(3) 10^(@) + sin^(3) 20 ^(@))=3 (cos 10^(@) + sin 2...

    Text Solution

    |

  7. Prove that, sqrt3/(sin 20^(@))-1/(cos 20^(@))=4

    Text Solution

    |

  8. Prove that,16 "cos" pi/15 "cos" (2pi)/15 "cos" (4pi)/15 "cos" (8pi)/15...

    Text Solution

    |

  9. Prove that,1/3 ( cos^(3) alpha sin 3 alpha + sin^(3) alpha cos 3 alpha...

    Text Solution

    |

  10. If tan^(2) alpha = 1 + 2 tan^(2) beta, "prove that ," cos 2 beta = 1 +...

    Text Solution

    |

  11. If sin alpha + cos alpha = sqrt2 cos alpha,"show that",tan 2 alpha = 1

    Text Solution

    |

  12. If " "2 cos (alpha + beta) cos (alpha-beta)=1, "show that," tan^(2) al...

    Text Solution

    |

  13. If " " tan theta = 1/7 " and " tan phi = 1/3 " show that", cos 2 theta...

    Text Solution

    |

  14. If" " tan theta = (sin alpha - cos alpha)/(sin alpha + cos alpha),"pro...

    Text Solution

    |

  15. If" " tan^(2) theta = 1 + 2 tan^(2) phi, "show that", cos 2theta + sin...

    Text Solution

    |

  16. If" " tan x=b/a, "find the value of " a^(2) "cosec2x + b^(2) sec 2x.

    Text Solution

    |

  17. If" " 2 tan alpha = 3 tan beta, " show that",tan ( alpha - beta) = (si...

    Text Solution

    |

  18. "If " pi/2 < theta lt pi and 5 sin ^(2) theta + 3 cos^(2) theta = 4,...

    Text Solution

    |

  19. If" " x^(2) + y^(2) = 1, "show that, "(3x - 4x^(3))^(2) + (3y - 4y^(3)...

    Text Solution

    |

  20. "Express" sin 5theta "in terms of" sin theta

    Text Solution

    |