r=(250(6))/((16+(6)^2)^{1/2)}

解答

r = \frac{250 ( 6 )}{( 16 + ( 6 ) ^{2} ) ^{\frac{1}{2}}}

r = \frac{750}{1 3 ^{\frac{1}{2}}}

十进制

r = 208.01257 \dots

求解步骤

r = \frac{250 ( 6 )}{( 16 + ( 6 ) ^{2} ) ^{\frac{1}{2}}}

化简

\frac{250 ( 6 )}{( 16 + 6 ^{2} ) ^{\frac{1}{2}}} : \frac{750}{1 3 ^{\frac{1}{2}}}

r = \frac{750}{1 3 ^{\frac{1}{2}}}

48 - 3 x = 5 x

so l v e f or y, x = 3 - y

so l v e f or y, x = 4 - y

5 - \frac{3}{4} x = \frac{3}{8}

so l v e f or c, \frac{f x + c d}{x - f} = \frac{1}{2}