Home
Class 12
MATHS
Find the value of cos 12^(@)+cos 84^(@)+...

Find the value of `cos 12^(@)+cos 84^(@)+cos 156^(@)+cos 132^(@)`

Promotional Banner

Topper's Solved these Questions

  • INVERSE TRIGONOMETRIC FUNCTIONS

    RESONANCE DPP ENGLISH|Exercise All Questions|15 Videos
  • MATRICES

    RESONANCE DPP ENGLISH|Exercise All Questions|7 Videos

Similar Questions

Explore conceptually related problems

Find the value of: cos150^(@)

Find the value of cos 585^(@)

Find the value of cos 75^@

Find the value of : cos 210^0

4 cos 12 ^(@) cos 48^(@) cos 72^(@) = cos 36 ^(@)

Find the value of : cos^(-1)(cos 4)

Find the value of : cos 1395^0

Find the value of cos (-171 0^(@))

Find the value of : cos^(-1)(cos 13)

Find the value of cos (-171 0^(@)) .

RESONANCE DPP ENGLISH-JEE MAINS-All Questions
  1. If n(A)=4a n dn(B)=7 , then the minimum and maximum values of n(AuuB)...

    Text Solution

    |

  2. Let p=2520, x=number of divisors of p which are multiple of 6, y=numbe...

    Text Solution

    |

  3. Find the value of cos 12^(@)+cos 84^(@)+cos 156^(@)+cos 132^(@)

    Text Solution

    |

  4. The relation R is such that a R b |a|geq|b| (1)Reflexive, not symmetr...

    Text Solution

    |

  5. Let Aa n dB be two events such that P(A)=0. 3 ,P(B)=0. 4a n dP(A^(prim...

    Text Solution

    |

  6. If f(theta) = (sin theta + cossec theta)^(2) + (cos theta + sec theta)...

    Text Solution

    |

  7. f(x)=int(e^(x))^(e^(-x))ln((1)/(t))dt, then which of following are cor...

    Text Solution

    |

  8. cos(10^0)dot(cos 20^0)dotcos(40^0)= " " " " " " " " " " " " " " " " " ...

    Text Solution

    |

  9. intn^(n+1)f(x) dx=n^2+n then int(-1)^1 f(x) dx =

    Text Solution

    |

  10. The value of lim(x->0) cosec^4 x int0^(x^2) (ln(1 +4t))/(t^2+1) dt is

    Text Solution

    |

  11. A box contains 20 identical balls of which 5 are white and 15 black....

    Text Solution

    |

  12. For three square matrix A ,B ,&CifA B C=O&|A|!=0, is non-zero singular...

    Text Solution

    |

  13. Let a ,b ,cR0 and each of the quadratic equations in x ,x^2+2(a^2+b...

    Text Solution

    |

  14. vec a=2 hat i- hat j+ hat k , vec b= hat i+2 hat j- hat k , vec c= hat...

    Text Solution

    |

  15. lim(xrarr2)(x^3-8)/(sin(x-2))

    Text Solution

    |

  16. The lines (x-2)/(1) = (y-3)/(1) =(z-4)/(-k) and (x-3)/(k)=(y-4)/(1) = ...

    Text Solution

    |

  17. int0^(pi/2)sin4xcotx dx is equal to -pi/2 (2) 0 (3) pi/2 (4) pi

    Text Solution

    |

  18. A rack has 5 different pairs of shoes. The number of ways in which 4 s...

    Text Solution

    |

  19. If f(x)=-x^(3)-3x^(2)-2x+a,a in R then the real values of x satisfying...

    Text Solution

    |

  20. Find x satisfying [tan^(-1) x] + [cot^(-1) x] = 2, where [.] represent...

    Text Solution

    |