Home
Class 11
MATHS
Find the value of cos 75^@...

Find the value of `cos 75^@`

Promotional Banner

Topper's Solved these Questions

  • SOLVED PAPER 2020-1

    OSWAAL PUBLICATION|Exercise EXERCISE|54 Videos

Similar Questions

Explore conceptually related problems

Find the value of cos 15^(@) .

Find the value of sin 75^(@) .

Find the value of cos 390^(@)

(a)Derive geometrically that cos(x+y)=cos x cos y-sin x sin y .Hence deduce the valueof cos 75^@

Find the value of cos (-1710^(@)).

Find the value of cos [cos^(-1) ((-sqrt3)/2) + pi/6]

Find the value of cos60^(@) cos 30^(@)-sin 60^(@) sin 30^(@)

Find the value of cos90^(@)+tan45^(@)

Find the value of cos ( sec^(-1)x + cosec^(-1) x), |x| ge 1 .

In DeltaABC if A+B= 90^(@) ,then find the value of cos C.

OSWAAL PUBLICATION-SOLVED PAPER 2020-2-EXERCISE
  1. Let f= R rarr R and g: R rarr R defined by f(x)=x+1,g(x)=2x-3.Find (f+...

    Text Solution

    |

  2. Find the radius of the circle in which a central angle of 60^(@) inter...

    Text Solution

    |

  3. Find the value of cos 75^@

    Text Solution

    |

  4. Find the multiplicative inverse of sqrt(5)+ 3i

    Text Solution

    |

  5. Solve 7x+3lt 5x+9. Show the graph of the solution on number line.

    Text Solution

    |

  6. Find the equation of a line perpendicular to the line x-2y +3=0 and ...

    Text Solution

    |

  7. Find the distance between the parallel lines 3x - 4y + 7 = 0 and 3x -...

    Text Solution

    |

  8. Are the points A ( 3,6,9) ,B( 10 ,20, 30 , ) and C( 25,- 41, 5) the ve...

    Text Solution

    |

  9. Evaluate underset(x rarr 2)lim [(x^2-4)/(x^3-4x^2+4x)]

    Text Solution

    |

  10. Write the contrapositive and converse of the statement. If two lines a...

    Text Solution

    |

  11. Write the mean of the given data : 6,7,10,12,13,4,8,12 ?

    Text Solution

    |

  12. Given P(A)=0.5,P(B)=0.35 and P(A uu B)=0.7 Find P(A nn B)

    Text Solution

    |

  13. In a class of 35 students, 24 like to play cricket and 16 to play foot...

    Text Solution

    |

  14. Determine the domain and range of the relation R defined by R={(x,x+...

    Text Solution

    |

  15. cos 4x=cos 2x

    Text Solution

    |

  16. Express sqrt3+i in polar form ?

    Text Solution

    |

  17. sqrt(2)x^(2) +x + sqrt(2)=0

    Text Solution

    |

  18. How many words, with or without meaning can be made from the letters o...

    Text Solution

    |

  19. How many words, with or without meaning can be made from the letters o...

    Text Solution

    |

  20. How many words, with or without meaning can be made from the letters o...

    Text Solution

    |