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受欢迎的代数 >

sqrt(y^2)= 5/(2*log_{2)(16)+5.4}

解答

y^{2} = \frac{5}{2 \cdot lo g _{2} ( 16 ) + 5.4}

解答

y = \frac{25}{67}, y = - \frac{25}{67}

+1

十进制

y = 0.37313 \dots, y = - 0.37313 \dots

求解步骤

y^{2} = \frac{5}{2 lo g _{2} ( 16 ) + 5.4}

两边进行平方:

y^{2} = \frac{25}{179.56}

y^{2} = \frac{25}{179.56}

解

y^{2} = \frac{25}{179.56} : y = \frac{25}{67}, y = - \frac{25}{67}

y = \frac{25}{67}, y = - \frac{25}{67}

验证解:

y = \frac{25}{67}

真

, y = - \frac{25}{67}

真

解为

y = \frac{25}{67}, y = - \frac{25}{67}

作图

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