Home
Class 12
MATHS
If A=130^(@) and x=sinA+cosA, then...

If `A=130^(@) and x=sinA+cosA`, then

A

`x gt 0`

B

`x lt 0`

C

`x =0`

D

`x le0`

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Topper's Solved these Questions

  • TRIGONOMETRY RATIOS AND IDENTITIES

    ML KHANNA|Exercise PROBLEM SET (4) TRUE AND FALSE|5 Videos

  • TRIGONOMETRY RATIOS AND IDENTITIES

    ML KHANNA|Exercise PROBLEM SET (4) FILL IN THE BLANKS|10 Videos

  • TRIGONOMETRY RATIOS AND IDENTITIES

    ML KHANNA|Exercise PROBLEM SET (3) (FILL IN THE BLANKS)|2 Videos

  • TRIGONOMETRICAL EQUATIONS

    ML KHANNA|Exercise SELF ASSESSMENT TEST |27 Videos

Similar Questions

Explore conceptually related problems

If x = 4cosA + 5sinA and y = 4 sinA - 5 cosA, then the value of x^2+y^2 is : यदि x = 4cosA + 5sinA तथा y = 4 sinA - 5 cosA है, तो x^2+y^2 का मान क्या होगा ?

If sinA+cosB=a and sinB+cosA=b then sin(A+B)=

If sinA+sinB=a and cosA+cosB=b,then cos(A+B)

If 3sinA +4cosA=4, " then find " 4sinA -3cosA .

If 0 lt a lt (pi)/(2) and sinA +cosA+tanA+cotA+secA+cosecA = 7, sinA and cosA are roots of equation 4x^(2) -3x +alpha = 0 , then the value of |(25alpha)/(4)| is _____________.

If 0 lt A lt pi//2 and sinA + cosA + tan A + cotA + secA + cosec A=7 and sinA and cosA are roots of equation 4x^(2) - 3x +a=0 . Then value of 25a is:

If (sinA+cosA)/(cosA)=17/12 , then the value of (1-cosA)/(sinA) is: यदि (sinA+cosA)/(cosA)=17/12 ,है, तो (1-cosA)/(sinA) का मान क्या होगा ?

If (2sinA)/(1+sinA+cosA)=k then (1+sinA-cosA)/(1+sinA)=

ML KHANNA-TRIGONOMETRY RATIOS AND IDENTITIES-PROBLEM SET (4) ( MULTIPLE CHOICE QUESTIONS)
  1. The roots of both the equation sin^(2) x + p sin x + q = 0 and cos^(2...

    Text Solution

    |

  2. If sin(120^0-alpha)=sin(120^0-beta),0<alpha,beta<pi, then find the rel...

    Text Solution

    |

  3. If A=130^(@) and x=sinA+cosA, then

    Text Solution

    |

  4. If alphaa n dbeta are the solutions of the equation at a ntheta+bs e c...

    Text Solution

    |

  5. If a cos 2 theta + b sin 2 theta =c has alpha and beta as its solut...

    Text Solution

    |

  6. and tan alpha tan beta =

    Text Solution

    |

  7. If alpha and beta are two distinct solutions of the equation a cos x +...

    Text Solution

    |

  8. If alpha+beta=pi/2a n dbeta+gamma=alpha, then tanalpha equals 2(tanbet...

    Text Solution

    |

  9. If tan alpha = ( 1)/( 7 ), tan beta = ( 1)/( 3), then cos 2 alpha=

    Text Solution

    |

  10. If A = sin 45^(@)+ cos 45^(@) and B = sin 44^(@) + cos 44^(@) then

    Text Solution

    |

  11. If costheta=(acosphi+b)/(a+bcosphi). Show that : tan.(theta)/(2)=pmsqr...

    Text Solution

    |

  12. If cos theta =(cos alpha - cos beta)/( 1- cos alpha cos beta), then on...

    Text Solution

    |

  13. If tanbeta=costhetatanalpha, then "tan"^(2)(theta)/(2)=

    Text Solution

    |

  14. If tan^(2) (( pi )/( 4) + ( theta )/( 2)) = - ( a )/( b), then

    Text Solution

    |

  15. If tan ( A+B) = 3 tan A, then ( sin 2 ( A+B) + sin 2A)/( sin 2B) is e...

    Text Solution

    |

  16. If cos2B=(cos(A+C))/(cos(A-C)), then tan A, tan B, tan C are in

    Text Solution

    |

  17. If cot y= (sin x- sin z)/(cos z- cos x) then which of the following ...

    Text Solution

    |

  18. If sin(y+z-x), sin (z+x-y), sin (x+y-z) be in A.P., prove that tanx ta...

    Text Solution

    |

  19. If t a n^2theta=2t a n^2varphi+1 , prove that cos2theta+s in^2varphi=0...

    Text Solution

    |

  20. If A and B are positive acute angles satisfying the equalities 3 cos^(...

    Text Solution

    |