solvefor B,u=sqrt(gB-R)

解答

求解

B, u = g B - R

B = \frac{u ^{2} + R}{g}

求解步骤

u = g B - R

两边进行平方:

u^{2} = g B - R

u^{2} = g B - R

解

u^{2} = g B - R : B = \frac{u ^{2} + R}{g}

B = \frac{u ^{2} + R}{g}

4 x + 1 - 3 = 5

1 + 24 - 10 x = 3 x + 5

so l v e f or x, u = 3 x y^{2}

so l v e f or x, y = 7 + 49 - x^{2}

25 x^{2} + 100 x + 125 = 5