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受欢迎的三角函数 >

solvefor x,z=sqrt(y)sin(4x)

解答

求解

x, z = y sin (4 x)

解答

x = \frac{arcsin ( \frac{z}{y} )}{4} + \frac{πn}{2}, x = \frac{π}{4} + \frac{arcsin ( - \frac{z}{y} )}{4} + \frac{πn}{2}

求解步骤

z = y sin (4 x)

交换两边

y sin (4 x) = z

两边除以

y; y \neq = 0

y sin (4 x) = z

两边除以

y; y \neq = 0

\frac{y sin ( 4 x )}{y} = \frac{z}{y}; y \neq = 0

化简

\frac{y sin ( 4 x )}{y} = \frac{z}{y}

化简

\frac{y sin ( 4 x )}{y} : sin (4 x)

\frac{y sin ( 4 x )}{y}

约分:

y

= sin (4 x)

化简

\frac{z}{y} : \frac{z y}{y}

\frac{z}{y}

乘以共轭根式

\frac{y}{y}

= \frac{z y}{y y}

y y = y

y y

使用根式运算法则:

a a = a

y y = y

= y

= \frac{z y}{y}

sin (4 x) = \frac{z y}{y}; y \neq = 0

sin (4 x) = \frac{z y}{y}; y \neq = 0

sin (4 x) = \frac{z y}{y}; y \neq = 0

使用反三角函数性质

sin (4 x) = \frac{z y}{y}

sin (4 x) = \frac{z y}{y}

的通解

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

4 x = arcsin (\frac{z y}{y}) + 2 πn, 4 x = π + arcsin (- \frac{z y}{y}) + 2 πn

4 x = arcsin (\frac{z y}{y}) + 2 πn, 4 x = π + arcsin (- \frac{z y}{y}) + 2 πn

解

4 x = arcsin (\frac{z y}{y}) + 2 πn : x = \frac{arcsin ( \frac{z}{y} )}{4} + \frac{πn}{2}

4 x = arcsin (\frac{z y}{y}) + 2 πn

化简

arcsin (\frac{z y}{y}) + 2 πn : arcsin (\frac{z}{y}) + 2 πn

arcsin (\frac{z y}{y}) + 2 πn

\frac{z y}{y} = \frac{z}{y}

\frac{z y}{y}

使用根式运算法则:

n a = a^{\frac{1}{n}}

y = y^{\frac{1}{2}}

= \frac{z y ^{\frac{1}{2}}}{y}

使用指数法则:

\frac{x ^{a}}{x ^{b}} = \frac{1}{x ^{b - a}}

\frac{y ^{\frac{1}{2}}}{y ^{1}} = \frac{1}{y ^{1 - \frac{1}{2}}}

= \frac{z}{y ^{1 - \frac{1}{2}}}

数字相减:

1 - \frac{1}{2} = \frac{1}{2}

= \frac{z}{y ^{\frac{1}{2}}}

使用根式运算法则:

a^{\frac{1}{n}} = n a

y^{\frac{1}{2}} = y

= \frac{z}{y}

= arcsin (\frac{z}{y}) + 2 πn

4 x = arcsin (\frac{z}{y}) + 2 πn

两边除以

4

4 x = arcsin (\frac{z}{y}) + 2 πn

两边除以

4

\frac{4 x}{4} = \frac{arcsin ( \frac{z}{y} )}{4} + \frac{2 πn}{4}

化简

x = \frac{arcsin ( \frac{z}{y} )}{4} + \frac{πn}{2}

x = \frac{arcsin ( \frac{z}{y} )}{4} + \frac{πn}{2}

解

4 x = π + arcsin (- \frac{z y}{y}) + 2 πn : x = \frac{π}{4} + \frac{arcsin ( - \frac{z}{y} )}{4} + \frac{πn}{2}

4 x = π + arcsin (- \frac{z y}{y}) + 2 πn

化简

π + arcsin (- \frac{z y}{y}) + 2 πn : π + arcsin (- \frac{z}{y}) + 2 πn

π + arcsin (- \frac{z y}{y}) + 2 πn

\frac{z y}{y} = \frac{z}{y}

\frac{z y}{y}

使用根式运算法则:

n a = a^{\frac{1}{n}}

y = y^{\frac{1}{2}}

= \frac{z y ^{\frac{1}{2}}}{y}

使用指数法则:

\frac{x ^{a}}{x ^{b}} = \frac{1}{x ^{b - a}}

\frac{y ^{\frac{1}{2}}}{y ^{1}} = \frac{1}{y ^{1 - \frac{1}{2}}}

= \frac{z}{y ^{1 - \frac{1}{2}}}

数字相减:

1 - \frac{1}{2} = \frac{1}{2}

= \frac{z}{y ^{\frac{1}{2}}}

使用根式运算法则:

a^{\frac{1}{n}} = n a

y^{\frac{1}{2}} = y

= \frac{z}{y}

= π + arcsin (- \frac{z}{y}) + 2 πn

4 x = π + arcsin (- \frac{z}{y}) + 2 πn

两边除以

4

4 x = π + arcsin (- \frac{z}{y}) + 2 πn

两边除以

4

\frac{4 x}{4} = \frac{π}{4} + \frac{arcsin ( - \frac{z}{y} )}{4} + \frac{2 πn}{4}

化简

x = \frac{π}{4} + \frac{arcsin ( - \frac{z}{y} )}{4} + \frac{πn}{2}

x = \frac{π}{4} + \frac{arcsin ( - \frac{z}{y} )}{4} + \frac{πn}{2}

x = \frac{arcsin ( \frac{z}{y} )}{4} + \frac{πn}{2}, x = \frac{π}{4} + \frac{arcsin ( - \frac{z}{y} )}{4} + \frac{πn}{2}

作图

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