Home
Class 10
MATHS
If r cos theta = 1/2 and r sin theta = ...

If `r cos theta = 1/2` and ` r sin theta = sqrt3/2`, then find the value of r , when ` 0 ∘ <θ<90 ∘`.

Promotional Banner

Topper's Solved these Questions

  • GARDEN REACH BIHARI DAS GIRL'S

    UNITED BOOK HOUSE|Exercise EXERCISE|55 Videos

  • HATI HIGH SCHOOL

    UNITED BOOK HOUSE|Exercise EXERCISE|55 Videos

Similar Questions

Explore conceptually related problems

If r cos theta = 3 and r sin theta = sqrt3 then find the value of r and theta .

If r cos theta = 3 and r sin theta = sqrt3 , then find the value of r and theta .

If r sin theta =7/2 and r costheta = (7sqrt3)/(2) then value of r is____

In sin theta+cos thea= sqrt2 , find the value of theta .

If sqrt3 cos theta + sin theta = sqrt2, then the general value of theta is-

If 0 lt theta lt pi/2 and sin 2 theta = cos 3 theta, then the value of sin theta is-

If cos^2 theta - sin^2 theta =1/2 , then find value of tan^2 theta .

If 0^(@) < theta < 90^(@) "and" cos theta + sin theta = sqrt2,"find the value of" cos 3 theta.

If (a^2-b^2)sin theta+ 2ab cos theta = a^2+b^2 then find the value of tan theta .

UNITED BOOK HOUSE-GHORANASH HIGH SCHOOL -EXERCISE
  1. In a cyclic quadrilateral ABCD, find the value of tanA/2tan B/2 tan C/...

    Text Solution

    |

  2. The line parallel to BC of triangleABC meets AB and AC at P and Q resp...

    Text Solution

    |

  3. If r cos theta = 1/2 and r sin theta = sqrt3/2, then find the value o...

    Text Solution

    |

  4. If tan theta+ cot theta = 2, then find the value of tan^5 theta+cot^5 ...

    Text Solution

    |

  5. The length of diagonal of a cube is 4 sqrt3cm. Find its total surface ...

    Text Solution

    |

  6. The curved surface area of a right circular cone is sqrt(10) times of ...

    Text Solution

    |

  7. If ui = (xi - 35)/(10), sumfiui =30 and sumfi = 60, then determine the...

    Text Solution

    |

  8. At the same rate of simple interest in percent per annum, if a princip...

    Text Solution

    |

  9. The price of any machine decreased by 10% in each year. If the price o...

    Text Solution

    |

  10. Answer any one : 1/a+b+x = 1/a+1/b+1/x, [x ne 0, - (a + b)]

    Text Solution

    |

  11. The area and perimeter of a rectangular park are 600 sq.m. and 100 m r...

    Text Solution

    |

  12. If x= (sqrt7+sqrt3)/(sqrt7-sqrt3) and xy = 1, find the value of (x^2+3...

    Text Solution

    |

  13. If a alpha b and b alpha c, show that a^3+b^3+c^3 alpha 5 abc.

    Text Solution

    |

  14. If a,b,c are in continued proportion, then show that 1/b^2= 1/(b^2-a^2...

    Text Solution

    |

  15. If a^2/(b+c)=b^2/(a+c)=c^2/(a+b)=1, then show that 1/(1+a)+1/(1+b)+1/(...

    Text Solution

    |

  16. Prove that opposite angles of a cyclic quadrilateral are supplementary

    Text Solution

    |

  17. State and prove Pythagoras theorem.

    Text Solution

    |

  18. Prove that two equal chords are equidistant from the centre of the cir...

    Text Solution

    |

  19. Two chords AB and AC of the larger of two concentrci circles touch the...

    Text Solution

    |

  20. Draw a triangle having sides 6cm, 8 cm and 10 cm. Now draw the incircl...

    Text Solution

    |