簡約 (1-cos(x))2

解

簡約

(1 - cos (x)) 2

2 - 2 cos (x)

解答ステップ

(1 - cos (x)) \cdot 2

拡張

(1 - cos (x)) \cdot 2 : 2 - 2 cos (x)

= 2 - 2 cos (x)

\frac{d ^{2}}{d t ^{2}} ((h) (3 t^{2} - 2 t + 4 + e^{- 10 t}))

e x p an d - 5 (- 7 - 2)

e x p an d \frac{2 x c ( x - b )}{- 2 b + x + a}

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

e x p an d (f \circ g) x^{3} (4 x^{2} - 5 x + 9) - 1