Home
Class 11
MATHS
Solve 4cos^(2)x=3,0lexle2pi...

Solve `4cos^(2)x=3,0lexle2pi`

Text Solution

Verified by Experts

The correct Answer is:
`{pi/6,(5pi)/6,(7pi)/6,(11pi)/6}`
Promotional Banner

Topper's Solved these Questions

  • MODEL TEST PAPER - 10

    ICSE|Exercise SECTION - B (In sub-parts (i) and (ii) choose the correct option and in sub - parts (iii) to (v), answer the questions as instructed.)|5 Videos

  • MODEL TEST PAPER - 10

    ICSE|Exercise SECTION - B |5 Videos

  • MODEL TEST PAPER - 10

    ICSE|Exercise SECTION - C |5 Videos

  • MODEL TEST PAPER - 18

    ICSE|Exercise SECTION - C|9 Videos

  • MODEL TEST PAPER - 17

    ICSE|Exercise SECTION -C|10 Videos

Similar Questions

Explore conceptually related problems

Solve: cos4x=cos2x

Solve 2 cos^(2) x+ sin x le 2 , where pi//2 le x le 3pi//2 .

Solve 2cos^2x+3sinx=0 .

The minimum value of f(x)-sin^(4)x+cos^(4)x,0lexle(pi)/(2) is

Solve: 16^(sin^(2)x) +16^(cos^(2)x)=10 ,0lt=x<2pi

Solve cos3x+cosx-cos2x=0

Solve cos 2x=|sin x|, x in (-pi/2, pi) .

Solve cos 2x=|sin x|, x in (-pi/2, pi) .

Solve for x, 0^@ le x le 90^@ 4 cos^(2)2x-3=0

Solve x^2-4|x|+3<0.

ICSE-MODEL TEST PAPER - 10 -SECTION - A
  1. Find the domain and range of f(x)=(x+2)/(|x+2|).

    Text Solution

    |

  2. List all the proper subsets of {0,{1},3}.

    Text Solution

    |

  3. If a cosA=b cos B, then prove that either the triangle is isosceles or...

    Text Solution

    |

  4. If secx=sqrt(2) and x does not lie in the 1^(st) quadrant, find the va...

    Text Solution

    |

  5. Solve 4cos^(2)x=3,0lexle2pi

    Text Solution

    |

  6. For the quadratic equation (k-1)x^(2)-kx+1=0, find k so that the roots...

    Text Solution

    |

  7. Find the greatest value of 3+5x-2x^(2).

    Text Solution

    |

  8. A function f is defined on the set of real numbers as follows : f(x)...

    Text Solution

    |

  9. If "tan"(x-y)/(2)," tan z, tan"(x+y)/(2) are in G.P., then show that c...

    Text Solution

    |

  10. If alpha and beta are two different values of theta lying between 0 an...

    Text Solution

    |

  11. Using principle of mathematical induction, prove that 5^(n+1)+4.6^(n) ...

    Text Solution

    |

  12. Given that y=(3x-1)^(2)+(2x-1)^(3), find (dy)/(dx) and points on the c...

    Text Solution

    |

  13. Differentiate using 1^(st) principle : f(x)=(1)/(sqrt(2x+3))

    Text Solution

    |

  14. If "tan"(x-y)/(2),tanz,"tan"(x+y)/(2) are in G.P., then show that cosx...

    Text Solution

    |

  15. If the A.M. and G.M. between two numbers are in the ratio x:y, then pr...

    Text Solution

    |

  16. Prove that ((i-sqrt(3))/(i+sqrt(3)))^(100)+((i+sqrt(3))/(i-sqrt(3)))^(...

    Text Solution

    |

  17. The point P(-1,0) lies on the circle x^(2)+y^(2)-4x+8y+k=0. Find the r...

    Text Solution

    |

  18. A line is drawn through the point A(4,-1) and parallel to the line 3x-...

    Text Solution

    |

  19. Lives of LG and Samsung Microwaves that are currently popular were obs...

    Text Solution

    |