Home
Class 10
MATHS
(cos 60^(@) xx cos 30^(@)+sin 60^(@)xx s...

`(cos 60^(@) xx cos 30^(@)+sin 60^(@)xx sin 30^(@))/(2 sin 30^(@) xx cos 0^(@)+ sin 90^(@))=?`

Promotional Banner

Topper's Solved these Questions

  • COVERAGE STANDARD QUESTION

    UNIQUE PUBLICATION|Exercise 2 Mark Questions|73 Videos

  • CO-ORDINATE GEOMETRY

    UNIQUE PUBLICATION|Exercise Assignment-V|8 Videos

  • FINANCIAL PLANNING

    UNIQUE PUBLICATION|Exercise UNIQUE PRACTICE SESSION (4 MARK QUESTION )|1 Videos

Similar Questions

Explore conceptually related problems

Evaluate : cos60^(@)cos30^(@)+ sin 60^(@)sin30^(@)

Verify each of the following : (i) sin60^(@)cos30^(@)-cos60^(@)sin30^(@)=sin30^(@) (ii) cos60^(@)cos30^(@)+sin60^(@)sin30^(@)=cos30^(@) (iii) 2sin 30^(@)cos30^(@)=sin60^(@) (iv) 2sin45^(@)cos45^(@)=sin90^(@)

Evalutate : sin60^(@) cos 30^(@)+sin30^(@)cos 30^(@) .

The value of (cos 0^(@) + sin 45^(@) + sin 30^(@)) (sin 90^(@) - cos 45^(@) + cos 60^(@)) is

Show that (i) cos60^(@)*cos30^(@)-sin60^(@)*sin30^(@)=cos90^(@) (ii) cos60^(@)=1-2sin^(2)30^(@)=2cos^(2)30^(@)-1 (iii) (tan60^(@)-tan30^(@))/(1+tan60^(@)*tan30^(@))=tan30^(@)

cos120^(@)=cos(90^(@)+30^(@)) =-sin30^(@)=-(1)/(2)

"(1) "sin60^(@)cos30^(@)+sin30^(@)cos60^(@)

sin60^(@).cos30^(@)+cos30^(@)*sin60^(@)

If cos 2x = cos 60^(@) cos 30^(@) + sin 60^(@) sin 30^(@), then the value of x is

UNIQUE PUBLICATION-COVERAGE STANDARD QUESTION -2 Mark Questions
  1. In right angled triangle XYZ if angleZ=theta, angleY=90^(@), cos theta...

    Text Solution

    |

  2. If tan theta=1/(2sqrt2) then find sin theta and cos theta.

    Text Solution

    |

  3. (cos 60^(@) xx cos 30^(@)+sin 60^(@)xx sin 30^(@))/(2 sin 30^(@) xx co...

    Text Solution

    |

  4. Find the value of, 5 sin 30^(@)+ 3 tan 45^(@),

    Text Solution

    |

  5. Find the value of (cos 56^@)/(sin 34^@) .

    Text Solution

    |

  6. If tan theta=(12)/(5)," then " 5 sin theta-12 cos theta=?

    Text Solution

    |

  7. Draw the co-ordinate system on a plane and plot the following points? ...

    Text Solution

    |

  8. In which quadrant are the following points. A(3,5), B(-2, -7)

    Text Solution

    |

  9. Write the equation of the line paraller to the y-axis at a distance of...

    Text Solution

    |

  10. The point Q(3, -2), lie on a line parallel to the y-axis, Write the eq...

    Text Solution

    |

  11. How many lines are there which are paraller to the x-axis and having a...

    Text Solution

    |

  12. Draw the co-ordinate system on a plane and plot the following points. ...

    Text Solution

    |

  13. Complete the table for drawing the graph. 2x-y=1

    Text Solution

    |

  14. Which of equation given below has graph parallel to x-axis and which o...

    Text Solution

    |

  15. Draw the graph of equation, x+y =0

    Text Solution

    |

  16. Without plotting points on graph state in which quadrant or on which a...

    Text Solution

    |

  17. How many lines are there which are paraller to the x-axis and having a...

    Text Solution

    |

  18. Prepare a table to draw graph of given equation 2x-y+1 =0

    Text Solution

    |

  19. What is the name of horizontal and the vertical lines draw to determin...

    Text Solution

    |

  20. On graph paper plot the point A(3, 0), B(3, 3), C(0, 3). Join A, B and...

    Text Solution

    |