Home
Class 12
MATHS
The number of all the possible triplets ...

The number of all the possible triplets `(a_1,a_2,a_3)` such that `a_1+a_2cos(2x)+a_2sin^2(x)=0` for all `x` is 0 (b) 1 (c) 3 (d) infinite

A

zero

B

infinite

C

one

D

none of these

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • MATHEMATICS

    FIITJEE|Exercise ASSERTION REASONING|8 Videos
  • MATHEMATICS

    FIITJEE|Exercise MCQ (MULTIPLE CORRECT)|30 Videos
  • MATHEMATICS

    FIITJEE|Exercise ASSIGNMENT (SECTION(I) MCQ(SINGLE CORRECT)|130 Videos
  • MATHEMATICAL REASONING

    FIITJEE|Exercise ASSIGNMENT PROBLEMS (OBJECTIVE) LEVEL-2|18 Videos
  • MATHEMATICS TIPS

    FIITJEE|Exercise NUMERICAL DECIMAL BASED QUESTIONS|21 Videos

Similar Questions

Explore conceptually related problems

The number of all the possible triplets (a_(1),a_(2),a_(3)) such that a_(1)+a_(2)cos(2x)+a_(2)sin^(2)(x)=0 for all x is 0 (b) 1(c)3(d) infinite

The number of all triplets (a_1,a_2,a_3) such that a_1 + a_2 cos 2x + a_3 sin^2 x = 0 for all x is : (A) 0 (B) 1 (C) 3 (D) Infinite

If p(x),q(x) and r(x) be polynomials of degree one and a_1,a_2,a_3 be real numbers then |(p(a_1), p(a_2),p(a_3)),(q(a_1), q(a_2),q(a_3)),(r(a_1), r(a_2),r(a_3))|= (A) 0 (B) 1 (C) -1 (D) none of these

Three rectangles A_1, A_2 and A_3 have the same area. Their lengths a_1, a_2 and a_3 respectively are such that a_1

If a_1,a_2,a_3 are in G.P. having common ratio r such that sum_(k=1)^n a_(2k-1)= sum_(k=1)^na_(2k+2)!=0 then number of possible value of r is (A) 1 (B) 2 (C) 3 (D) none of these

a_1, a_2, a_3, in R-{0} and a_1+a_2cos2x+a_3sin^2x=0fora l lx in R , then (a)vector vec a=a_1 hat i+a_2 hat j+a_3 hat ka n d vec b=4 hat i+2 hat j+ hat k are perpendicular to each other (b)vector vec a=a_1 hat i+a_2 hat j+a_3 hat ka n d vec b=- hat i+ hat j+2 hat k are parallel to each other (c)vector vec a=a_1 hat i+a_2 hat j+a_3 hat k is of lengthsqrt(6) units, then one of the ordered triple (a_1, a_2, a_3)=(1,-1,-2) (d)are perpendicular to each other if 2a_1+3a_2+6a_3=26 ,t h e n|a_1 hat i+a_2 hat j+a_3 hat k|i s2sqrt(6)

FIITJEE-MATHEMATICS -OBJECTIVE
  1. Consider a triange ABC, where B and C are (-a,0) and (a,0) respectivel...

    Text Solution

    |

  2. If sinx,cosx,tanxare in G.P., then cot^6x-cot^2x= (A) 0 (B) -1 (C) 1 (...

    Text Solution

    |

  3. The triangle formed by the tangent to the parabola y=x^(2) at the poin...

    Text Solution

    |

  4. The number of all the possible triplets (a1,a2,a3) such that a1+a2cos(...

    Text Solution

    |

  5. The value of lamda for which the equation (10 x -5) ^(2) + (10y-15) ^...

    Text Solution

    |

  6. From any point P on the parabola y^(2)=4ax, perpebdicular PN is drawn ...

    Text Solution

    |

  7. If sin x (1)+ sin x(2) + sin x (3) +…+ sin x (n) is

    Text Solution

    |

  8. Two paralel straight lines indined at an angle theta to x-axis where (...

    Text Solution

    |

  9. Let the equation of circle is x ^(2) + y ^(2) - 6x + 4y + 12=0. Then ...

    Text Solution

    |

  10. If a and b be the segments of a focal chord and 4c be the latus rectum...

    Text Solution

    |

  11. sum (k =1) ^(89) log (e) tan ((pik)/(180)) is equal to

    Text Solution

    |

  12. The lengths of intercepts made by any circle on the coordinate axes ar...

    Text Solution

    |

  13. Portion of asymptote of hypebola (x^(2))/(a^(2)) - (y ^(2))/(b ^(2)) =...

    Text Solution

    |

  14. Equation of circle touching the lines |x-2| + | y-3|=4 will be

    Text Solution

    |

  15. If the focus of the parabola (y - k)^2 = 4(x - h) always lies between ...

    Text Solution

    |

  16. As system of line is given as y = mx + c, where m, can take any vlaue ...

    Text Solution

    |

  17. If (a -a')^(2) + (b-b')^(2) + c-c')^(2) =p and (ab'-a'b)^(2)+ (bc'-b'c...

    Text Solution

    |

  18. Let ABC be a triangle whose vertices are A- (-5,5), and B (7, -1) if ...

    Text Solution

    |

  19. Consider a parabola y ^(2) = alpha x and a point (- (alpha )/(4), 0) ...

    Text Solution

    |

  20. One of the asymptotes (with negative slope) of a hypebola passes throu...

    Text Solution

    |