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受欢迎的三角函数 >

sin(B)= 1/4

解答

sin (B) = \frac{1}{4}

解答

B = 0.25268 \dots + 2 πn, B = π - 0.25268 \dots + 2 πn

+1

度数

B = 14.47751 \dots^{\circ} + 36 0^{\circ} n, B = 165.52248 \dots^{\circ} + 36 0^{\circ} n

求解步骤

sin (B) = \frac{1}{4}

使用反三角函数性质

sin (B) = \frac{1}{4}

sin (B) = \frac{1}{4}

的通解

sin (x) = a \Rightarrow x = arcsin (a) + 2 πn, x = π - arcsin (a) + 2 πn

B = arcsin (\frac{1}{4}) + 2 πn, B = π - arcsin (\frac{1}{4}) + 2 πn

B = arcsin (\frac{1}{4}) + 2 πn, B = π - arcsin (\frac{1}{4}) + 2 πn

以小数形式表示解

B = 0.25268 \dots + 2 πn, B = π - 0.25268 \dots + 2 πn

作图

流行的例子

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0.6875 = cos (A)

(sin(2x))/(sin(x))=1.5

\frac{sin ( 2 x )}{sin ( x )} = 1.5