arcsin (x), sin -1 (x), feidhm sine inbhéartach .
Sainmhínítear aircín x mar fheidhm inbhéartach sine x nuair -1≤x≤1.
Nuair a bhíonn sine y cothrom le x:
sin y = x
Ansin tá an t-áirse de x cothrom le feidhm sine inbhéartach x, atá cothrom le y:
arcsin x = sin -1 x = y
arcsin 1 = sin -1 1 = π / 2 rad = 90 °
Ainm na rialach | Riail |
---|---|
Sín arcsine | sin (arcsin x ) = x |
Arcsine de sine | arcsin (sin x ) = x +2 k π, nuair is slánuimhir k ∈ℤ ( k ) |
Arcsin argóint dhiúltach | arcsin (- x ) = - arcsin x |
Uillinneacha comhlántacha | arcsin x = π / 2 - arccos x = 90 ° - arccos x |
Suim Arcsin | arcsin α + arcsin ( β ) = arcsin ( α√ (1- β 2 ) + β√ (1- α 2 ) ) |
Difríocht Arcsin | arcsin α - arcsin ( β ) = arcsin ( α√ (1- β 2 ) - β√ (1- α 2 ) ) |
Cosine arcsine | ![]() |
Tadhlaí arcsine | ![]() |
Díorthach arcsine | ![]() |
Cuid dhílis éiginnte de arcsine | ![]() |
x | arcsin (x) (rad) |
arcsin (x) (°) |
---|---|---|
-1 | -π / 2 | -90 ° |
-√ 3 /2 | -π / 3 | -60 ° |
-√ 2 /2 | -π / 4 | -45 ° |
-1/2 | -π / 6 | -30 ° |
0 | 0 | 0 ° |
1/2 | π / 6 | 30 ° |
√ 2 /2 | π / 4 | 45 ° |
√ 3 /2 | π / 3 | 60 ° |
1 | π / 2 | 90 ° |
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