Home
Class 11
MATHS
sin 315^@=……….a)-1/2 b)-1/sqrt2 c)-sqrt...

`sin 315^@`=……….a)`-1/2` b)`-1/sqrt2` c)`-sqrt3/2` d)1

A

`-1/2`

B

`-1/sqrt2`

C

`-sqrt3/2`

D

1

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • MODEL PAPER 18

    MAXIMUM PUBLICATION|Exercise EXAMPLE|44 Videos

  • PERMUTATION AND COMBINATIONS

    MAXIMUM PUBLICATION|Exercise EXAMPLE|171 Videos

Similar Questions

Explore conceptually related problems

The value of "sin"(31)/(3)pi is a) (sqrt3)/(2) b) (1)/(sqrt2) c) (-sqrt3)/(2) d) (-1)/(sqrt2)

The slope of the straight line which does not intersect x-axis is equal to a) (1)/(2) b) (1)/(sqrt(2)) c) sqrt(3) d)0

If the equation 3x + 3y + 5=0 is written in the form x cos alpha + y sin alpha = p , then the value of sin alpha + cos alpha is a) sqrt2 b) (1)/( sqrt2) c) - sqrt2 d) - (1)/( sqrt2)

The value of cos 20^(@) + cos 100^(@) + cos 140^(@) is equal to a) (1)/(2) b) (1)/(sqrt(3)) c) sqrt(3) d)0

sin 765^(@) is equal to a)1 b)0 c) sqrt(3)//2 d) 1//sqrt2

The minimum values of sin x + cos x is a) sqrt2 b) -sqrt2 c) (1)/(sqrt2) d) - (1)/(sqrt2)

Let lambda and alpha be real. Let S denote the set of all values of lambda for which the system of linear equations lambda x+ (sin alpha) y + (cos alpha)z = 0 , x + (cos alpha) y + (sin alpha) z = 0 , -x + (sin alpha) y - (cos alpha) z = 0 has a non trivial solution then S contains a) (-1,1) b) [-sqrt2,-1] c) [1,sqrt2] d) [-sqrt2,sqrt2]

If omega is a complex cube root of unity, then the value of sin{(omega^(10)+omega^(23))pi-(pi)/(6)} is a) (1)/(sqrt(2)) b) (sqrt(3))/(2) c) -(1)/(sqrt(2)) d) (1)/(2)

If sin4A-cos2A=cos4A-sin2A,(0ltAlt(pi)/(4)), then the value of tan4A is a)1 b) (1)/(sqrt(3)) c) sqrt(3) d) (sqrt(3)-1)/(sqrt(3)+1)

MAXIMUM PUBLICATION-MODEL PAPER 20-EXAMPLE
  1. A={ x:x is an integer and -3 < x < 7} B={x:x is a natural number les...

    Text Solution

    |

  2. In a class of 35 students , 24 likes to play cricket ,16 likes to play...

    Text Solution

    |

  3. sin 315^@=……….a)-1/2 b)-1/sqrt2 c)-sqrt3/2 d)1

    Text Solution

    |

  4. Prove that 2sin^2(pi/6)+cosec^2((7pi)/6)cos^2(pi/3)=3/2

    Text Solution

    |

  5. If the sum of first n terms of an arithemetic progression 2,5,8… is eq...

    Text Solution

    |

  6. The sum of first three terms of a Geometric Progression is 13/12 and t...

    Text Solution

    |

  7. The sum of first three terms of a geometric progression is 13/12 and t...

    Text Solution

    |

  8. Find the ratio in which the line segment joining the points (2,4,-3) a...

    Text Solution

    |

  9. Find the ratio in which the line segment joining the points (2,4,-3) a...

    Text Solution

    |

  10. Find the derivative of cosx from first principle.

    Text Solution

    |

  11. Find the derivative of cosx/(1+sinx) with respect to x.

    Text Solution

    |

  12. Which of the given graph doesn't represent a function

    Text Solution

    |

  13. Identify signum function from given graphs

    Text Solution

    |

  14. Write domain and range of signum function

    Text Solution

    |

  15. For every positive integer n,prove that 7^n-3^n is divisible by 4 usin...

    Text Solution

    |

  16. In the figure , Z represents a complex number. Write the complex num...

    Text Solution

    |

  17. In the above figure , Z represents a complex number. Find real and i...

    Text Solution

    |

  18. In the above figure , Z represents a complex number. Find the multip...

    Text Solution

    |

  19. Solve graphically: 2x+y>4,x+y<3,2x-3y<6

    Text Solution

    |

  20. Find the middle term of the expression (3-x^3/6)^8

    Text Solution

    |