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Online arcsin(x) calculator. Inverse sine calculator.

The arcsine function is the inverse function of y = sin(x).

arcsin(*y*) = sin^{-1}(*y*) = *x* + 2*kπ *

For every

*k *= {...,-2,-1,0,1,2,...}

For example, If the sine of 30° is 0.5:

sin(30°) = 0.5

Then the arcsine of 0.5 is 30°:

arcsin(0.5) = sin^{-1}(0.5) = 30°

y | x = arcsin(y) | |
---|---|---|

degrees | radians | |

-1 | -90° | -π/2 |

-0.8660254 | -60° | -π/3 |

-0.7071068 | -45° | -π/4 |

-0.5 | -30° | -π/6 |

0 | 0° | 0 |

0.5 | 30° | π/6 |

0.7071068 | 45° | π/4 |

0.8660254 | 60° | π/3 |

1 | 90° | π/2 |

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