Home
Class 12
MATHS
Let cos(alpha+beta)=4/5 and let sin(alph...

Let `cos(alpha+beta)=4/5` and let `sin(alpha-beta)=5/(13),w h e r e0lt=alpha,betalt=pi/4dot` Then `t a n2alpha=` `(56)/(33)` b. `(19)/(12)` c. `(20)/7` d. `(25)/(16)`

Promotional Banner

Topper's Solved these Questions

  • APPLICATION OF INTEGRALS

    RESONANCE DPP|Exercise All Questions|4 Videos

  • CONTINUITY AND DIFFERENTIABILITY

    RESONANCE DPP|Exercise All Questions|62 Videos

Similar Questions

Explore conceptually related problems

Let cos(alpha+beta)=(4)/(5) and let sin(alpha-beta)=(5)/(13) , where 0 le alpha , beta=(pi)/(4) . Then tan2alpha=

Let cos(alpha+beta)""=4/5 and let s in(alphabeta)""=5/(13) where 0lt=alpha,betalt=pi/4 , then t a n""2alpha= (1) (56)/(33) (2) (19)/(12) (3) (20)/7 (4) (25)/(16)

Let cos(alpha+beta) =4/5 and let sin (alpha-beta)=5/13 where 0 le alpha, beta le (pi)/(4) then tan 2 alpha

Let cos(alpha+beta)=(4)/(5) and sin(alpha-beta)=(5)/(13) where 0<=alpha,beta<=(pi)/(4) then find tan(2 alpha)

Let cos(alpha+beta)=(4)/(5) and let sin (alpha-beta)=(5)/(13) where 0<=alpha,beta<=(pi)/(4). Then tan2 alpha=(56)/(33)(b)(19)/(12)(c)(20)/(7) (d) (25)/(16)

If cos(alpha+beta)=3/5, sin(alpha-beta)=5/13 , and 0 lt alpha, beta lt pi/4 , then tan(2alpha) is equal to:

RESONANCE DPP-BOARD PAPER SOLUTIONS-All Questions
  1. A polynomial P(x) of third degree vanish when x=1 & x=-2 . This polyno...

    Text Solution

    |

  2. A polynomial P(x) of third degree vanish when x=1 & x=-2 . This polyno...

    Text Solution

    |

  3. Let cos(alpha+beta)=4/5 and let sin(alpha-beta)=5/(13),w h e r e0lt=al...

    Text Solution

    |

  4. Number of solutions of the equation t a n x+s e c x=2cos x lying in th...

    Text Solution

    |

  5. cosalpha is a root of the equation 25 x^2+5x-12=0,-1lt x lt 0, then th...

    Text Solution

    |

  6. In a triangle A B C , right angled at C ,t a n A+t a n B is equal to a...

    Text Solution

    |

  7. Cosider the equation |x^2-2x-3|=m , m in R If the given equation has f...

    Text Solution

    |

  8. If the given equation: |x^2-2x-3|=m has two solutions, then a.m in [4...

    Text Solution

    |

  9. If the given equation: |x^2-2x-3|=m has three solutions, then a. m i...

    Text Solution

    |

  10. A class contains 4 boys and g girls. Every Sunday five students, inclu...

    Text Solution

    |

  11. Draw graph of the following expression. Also find extremum value if it...

    Text Solution

    |

  12. Draw graph of y=|3x-5|

    Text Solution

    |

  13. The number of integral value(s) of x satisfying the equation |x^4 .3^...

    Text Solution

    |

  14. The complete solution set of the inequation sqrt(x+18)<2-x , is (-18 ,...

    Text Solution

    |

  15. If ln^2x+3ln x-4 is non negative, then x must lie in the interval: ...

    Text Solution

    |

  16. If log2, log (2^x-1) and log(2^x+3) are in A.P., then x is equal to

    Text Solution

    |

  17. The n^(t h) term of the sequence 5+55+555+... is 5xx10^(n-1) b. 5x...

    Text Solution

    |

  18. If x^2+a x+10=0a n dx^2+b x-10=0 have common root, then a^2-b^2 i...

    Text Solution

    |

  19. If the equation x^2=a x+b=0 has distinct real roots and x^2+a|x|+b=0 h...

    Text Solution

    |

  20. Sum of an infinitely many terms of a G.P. is 3 times the sum of even ...

    Text Solution

    |