Home
Class 10
MATHS
If Cos A =(sqrt(3))/(2), 0^(@) lt A lt 9...

If `Cos A =(sqrt(3))/(2), 0^(@) lt A lt 90^(@)` , then A is equal to

A

`(sqrt(3))/(2)`

B

`30^(@)`

C

`60^(@)`

D

1

Text Solution

AI Generated Solution

Promotional Banner

Topper's Solved these Questions

  • CBSE BOARDS 2020

    X BOARD PREVIOUS YEAR PAPER ENGLISH|Exercise QUESTION|41 Videos
  • CBSE BOARDS 2020

    X BOARD PREVIOUS YEAR PAPER ENGLISH|Exercise SECTION D|25 Videos
  • SAMPLE PAPER 2019

    X BOARD PREVIOUS YEAR PAPER ENGLISH|Exercise SECTION-C|5 Videos

Similar Questions

Explore conceptually related problems

If (sinA)/(sinB)=(sqrt(3))/(2) and (cosA)/(cosB)=(sqrt(5))/(2) , 0 lt A, B lt (pi)/(2) then tanA+tanB is equal to :

If -1 lt x lt 0 , then cos^(-1) x is equal to

If sin alpha +cos alpha =(sqrt(3)+1)/(2), 0 lt alpha lt 2pi , then possible values "tan"(alpha)/(2) can take is/are :

If sqrt(3)tan2theta=3 and 0^(@) lt theta le 90^(@) , find the value of 3sqrt(3)costheta+2sintheta-6tan^(2)theta .

If sqrt(3)tan2theta=3 and 0^(@) lt theta le 90^(@) , find the value of 3sqrt(3)costheta+2sintheta-6tan^(2)theta .

If -1lt x lt 0 then tan^(-1) x equals

If cos x + sin x = a , (- (pi)/(2) lt x lt - (pi)/(4)) , then cos 2 x is equal to

If sec x cos 5x=-1 and 0 lt x lt (pi)/(4) , then x is equal to

If sinA = 3/5 and 0^@ lt A lt 90^@ , find the value of sin 2A, cos 2A, tan 2A, and sin 4A .

if tan (A + B) = sqrt(3) and tan (A - B) = 1/ sqrt(3) , 0 (lt) A + B (le) 90^@, A (gt) B , then find the values of A and B.

X BOARD PREVIOUS YEAR PAPER ENGLISH-CBSE BOARDS 2020-SECTION -A
  1. The discriminant of the quadratic equation 4x^2 - 6x +3 = 0 is (A) 1...

    Text Solution

    |

  2. For the following frequency distribution The upper limit of media...

    Text Solution

    |

  3. If Cos A =(sqrt(3))/(2), 0^(@) lt A lt 90^(@) , then A is equal to

    Text Solution

    |

  4. The probability of an impossible event is 0 (b) 1 (c) 1//2 (d) n...

    Text Solution

    |

  5. If a pair of linear equations is consistent, then the lines represente...

    Text Solution

    |

  6. the distance between the points (3,-2) and (-3,2) is a) sqrt(52) un...

    Text Solution

    |

  7. 180 can be expressed as a product of its prime factors as

    Text Solution

    |

  8. The total surface area of frustum shaped glass tumbler is (r1 gt r2) ...

    Text Solution

    |

  9. If 2 is a zero of the polynomial ax^2-2x then the value of a is ........

    Text Solution

    |

  10. if the radii of two spheres are in the ratio 2:3, then the ratio of th...

    Text Solution

    |

  11. A line intersecting a circle in two points is called a .

    Text Solution

    |

  12. if ar((triangle)PQR) is zero, then the points P,Q and R A are --------...

    Text Solution

    |

  13. All squares are . (congruent/similar)

    Text Solution

    |

  14. A coin is tossed twice, the probability of getting head both the times...

    Text Solution

    |

  15. Find the radius of the sphere whose surface area is 36pi cm^(2).

    Text Solution

    |

  16. Find the value of x so that -6, x, 8 are in AP

    Text Solution

    |

  17. Find the 11^(th) term of the A.P. -27, -22, -17, -12......

    Text Solution

    |

  18. In figure , the angle of elevation of the top of a tower AC from a poi...

    Text Solution

    |

  19. Evaluate tan 40^@ xx tan 50^@

    Text Solution

    |

  20. If cos A = sin 42^@, then find the value of A.

    Text Solution

    |