Home
Class 12
MATHS
Find the values of x in (-pi,pi) which s...

Find the values of `x in (-pi,pi)` which satisfy the equation `8^(1+|cosx|+|cos^2x|+|cos^(2x|+))=4^3`

A

`{(pi)/(3)}`

B

`(-(pi)/(3), - (2pi)/(3))`

C

`(-(pi)/(3), (2pi)/(3))`

D

`((pi)/(3), (2pi)/(3))`

Text Solution

Verified by Experts

The correct Answer is:
B, D
Promotional Banner

Topper's Solved these Questions

  • PROGRESSIONS

    ML KHANNA|Exercise PROBLEM SET - 2 (TRUE AND FALSE) |2 Videos

  • PROGRESSIONS

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

  • PROGRESSIONS

    ML KHANNA|Exercise PROBLEM SET - 1 (FILL IN THE BLANKS) |4 Videos

  • PROBABILITY

    ML KHANNA|Exercise MISCELLANEOUS EXERCISE|6 Videos

  • PROPERTIES OF TRIANGLES

    ML KHANNA|Exercise Self Assessment Test (Multiple Choise Questions)|34 Videos

Similar Questions

Explore conceptually related problems

Find the values of x in(-pi,pi) which satisfy the equation 8^((1+|cos x|+cos^(2)x|+cos^(2)x|+...))=4^(3)

For 0 lt x lt pi the values of x which satisfy then relation 9^(1+|cos x|+ |cos^(2) x| + | cos^(3)x| +…) upto oo =3^(4) are given by

Let Ssub(0,pi) denote the set of values of x satisfying the equation 8^1+|cos x|+cos^2x+|cos^(3x| tooo)=4^3 . Then, S= {pi//3} b. {pi//3,""2pi//3} c. {-pi//3,""2pi//3} d. {pi//3,""2pi//3}

The integral Value of x in(-pi,pi) satisfying the equation |x^(2)-1+cos x|=|x^(2)-1|+|cos x| can be

Find the number of values of x in [-pi/4, pi/4] satisfying the equation sin^(2) (2 cos^(-1) (tan x))=1

The number of values of x in [0,2pi] satisfying the equation 3cos2x-10cosx+7=0 is

Find the values of x in the interval [0,\ 2pi] which satisfy the inequality : 3\ |sinx-1|>=3+4cos^2x .

Find the values of x in the interval [0,2pi] which satisfy the inequality: 3|2sinx-1|ge3+4cos^(2)x

ML KHANNA-PROGRESSIONS -PROBLEM SET - 2 (MULTIPLE CHOICE QUESTIONS)
  1. An equilateral triangle is drawn by joining the mid-points of a given ...

    Text Solution

    |

  2. If the expression exp {1+|cosx|+cos^(3)x|+cos^(4)x+ . . . . oo)log(e...

    Text Solution

    |

  3. Find the values of x in (-pi,pi) which satisfy the equation 8^(1+|cosx...

    Text Solution

    |

  4. In an A.P., (S(p))/(S(q)) = (p^(2))/(q^(2)), p ne q, then (T(6))/(T(21...

    Text Solution

    |

  5. If ||a| lt 1 "and " |b| lt 1 then the sum of the series 1+(1+a)b+(1+a+...

    Text Solution

    |

  6. If exp. {(sin^2x+sin^4x+sin^6x+…inf.) In2} satisfies the equation x^2-...

    Text Solution

    |

  7. The value of 0. 2^(logsqrt(5)1/4+1/8+1/(16)+) is 4 b. log4 c. log2 d....

    Text Solution

    |

  8. The value of (0*16)^(log(2*5)((1)/(3)+(1)/(3^(2))+(1)/(3^(3))+....oo))...

    Text Solution

    |

  9. If the sum of an infinitely decreasing G.P. is 3, and the sum of the s...

    Text Solution

    |

  10. The sum of an infinite geometric progression (G.P.) is 2 and the sum o...

    Text Solution

    |

  11. Consider an infinite geometric series with first term a and common rat...

    Text Solution

    |

  12. If S(lambda) = sum(r = 0)^(oo) (1)/(lambda^(r)),"then" sum(lambda = 1)...

    Text Solution

    |

  13. If a,b,c are in A.P., then 2^(ax+1),2^(bx+1),2^(cx+1), x in R, are in

    Text Solution

    |

  14. If a,b,c are in A.P. as well as in G.P. then

    Text Solution

    |

  15. If a,b,c are in G.P., then show that : a(b^2+c^2)=c(a^2+b^2)

    Text Solution

    |

  16. If x, y ,z are in G.P. and a^x = b^y = c^z , then :

    Text Solution

    |

  17. log(3) 2, log(6) 2, log(12)2 are in

    Text Solution

    |

  18. If a, b, c are in G.P., then log(a) 10, log(b) 10, log(c) 10 are in

    Text Solution

    |

  19. If (a + be^(x))/(a-be^(x)) = (b + ce^(x))/(b-ce^(x)) = (c+de^(x))/(c -...

    Text Solution

    |

  20. If a,b,c are in A.P., a,x,b are in G.P. and b,y,c are in G.P. then a^(...

    Text Solution

    |