Home
Class 14
MATHS
If sin theta=0.7, "then" cos theta, 0 le...

If `sin theta=0.7, "then" cos theta, 0 le theta lt 90^(@)` is
यदि `sin theta=0.7,` तो `cos theta, 0 le theta lt 90^(@)` है :

A

`0.3`

B

`sqrt(0.49)`

C

`sqrt(0.51)`

D

`sqrt(0.9)`

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Topper's Solved these Questions

  • TRIGONOMETRY

    KIRAN PUBLICATION|Exercise TYPE -III|90 Videos
  • TRIGONOMETRY

    KIRAN PUBLICATION|Exercise TYPE -IV|22 Videos
  • TRIGONOMETRY

    KIRAN PUBLICATION|Exercise TEST YOURSELF|25 Videos
  • TIME AND WORK

    KIRAN PUBLICATION|Exercise TEST YOURSELF|25 Videos

Similar Questions

Explore conceptually related problems

If sin 2 theta = cos theta , where 0^(@) le theta le 90^(@) , then theta =

If sin theta = sqrt(3) cos theta, 0 lt theta lt 90^(@) , then theta is equal to .

If sintheta - cos theta = 7/13 and 0 lt theta lt 90^(@) ,then the value of sin theta + cos theta is:

If sin theta - cos theta =0, 0 le theta le 90^(@) then the value of theta is _____-

If 0lt theta lt 90^(@) , the (sin theta+cos theta) is :

If (sin 3theta)/(cos 2theta)lt 0 , then theta lies in

If sin theta + 2cos theta = -1 , where 0 lt theta lt pi/2 , what is 2 sin theta - cos theta equal to ?

KIRAN PUBLICATION-TRIGONOMETRY -TYPE - II
  1. The least value of tan^(2)x+cot^(2)x is :

    Text Solution

    |

  2. The value of theta , which satisfies the equation tan^(2)theta+3=3...

    Text Solution

    |

  3. If sin theta=0.7, "then" cos theta, 0 le theta lt 90^(@) is यदि sin ...

    Text Solution

    |

  4. If xsin60^(@). tan30^(@)=sec60^(@).cot45^(@) , then the value of ...

    Text Solution

    |

  5. If theta=60^(@) , then (1)/(2)sqrt(1-sintheta) is equal to

    Text Solution

    |

  6. If (2tan^(2)30^(@))/(1-tan^(2)30^(@))+sec^(2)45^(@)-sec^(2)0^(@)=xsec...

    Text Solution

    |

  7. If tantheta=(sinalpha-cosalpha)/(sinalpha+cosalpha), then sinalpha+cos...

    Text Solution

    |

  8. If tan9^(@)=(p)/(q) , then the value of (sec^(2)81^(@))/(1+cot^(2)...

    Text Solution

    |

  9. If sectheta+tantheta=5 , then the value of (tantheta+1)/(tantheta-1...

    Text Solution

    |

  10. If tan ^2 theta =1-e ^(2), then sec theta + tan ^(3) theta cosec thet...

    Text Solution

    |

  11. Which one of the following is true for 0^(@)ltthetalt90^(@)?

    Text Solution

    |

  12. If x=asecthetacostheta,y=bsecthetasinthetaandz=thetatantheta, then fin...

    Text Solution

    |

  13. The value of (cos^(2)60^(@)+4sec^(2)30^(@)-tan^(2)45^(@))/(sin^(2)30...

    Text Solution

    |

  14. If cos^2 theta - sin^2 theta = 1/3, where 0 le theta le pi/2, then the...

    Text Solution

    |

  15. If tan theta = 1/(sqrt(11)) and 0 < theta < pi/2, then the value of ("...

    Text Solution

    |

  16. The value of (1)/(sqrt(2))"sin"(pi)/(6)"cos"(pi)/(4)-"cot"(pi)/(3)"...

    Text Solution

    |

  17. If sintheta=(3)/(5) , then the value of (tantheta+costheta)/(cotthet...

    Text Solution

    |

  18. If acostheta +bsin theta=pand a sin theta-b cos theta=q, then the r...

    Text Solution

    |

  19. If (sinalpha+"cosec"alpha)^(2)+(cosalpha+secalpha)^(2)=k+tan^(2)alpha...

    Text Solution

    |

  20. If sin21^(@)=(x)/(y) , then sec21^(@)-sin69^(@) is equal to

    Text Solution

    |