化简 (ucos(v))(2u^2*cos(v))

解答

化简

(u \cdot cos (v)) \cdot (2 u^{2} \cdot cos (v))

2 u^{3} cos^{2} (v)

求解步骤

(u cos (v)) (2 u^{2} cos (v))

使用指数法则:

a^{b} \cdot a^{c} = a^{b + c}

cos (v) cos (v) = cos^{1 + 1} (v)

= u \cdot 2 u^{2} cos^{1 + 1} (v)

数字相加:

1 + 1 = 2

= u \cdot 2 u^{2} cos^{2} (v)

使用指数法则:

a^{b} \cdot a^{c} = a^{b + c}

u u^{2} = u^{1 + 2}

= 2 u^{1 + 2} cos^{2} (v)

数字相加:

1 + 2 = 3

= 2 u^{3} cos^{2} (v)

s im pl i f y ((x^{- \frac{2}{3}})^{\frac{3}{5}})^{\frac{5}{4}}

s im pl i f y \frac{( - 3 n + 3 x ) ^{2}}{n ^{2}}

s im pl i f y 60 e^{- 0.0051 \cdot 0}

s im pl i f y 200 \cdot 1 0^{- 0.08664 \cdot 32}

s im pl i f y e^{- \frac{16}{200} \cdot 200}