展開する (2t,s+tcos^2(s)+s^2t^4)(tcos(s))

解

展開する

(2 t, s + t cos^{2} (s) + s^{2} t^{4}) (t cos (s))

2 t (t cos (s)), s + t cos^{2} (s) (t cos (s)) + t^{4} s^{2} (t cos (s))

解答ステップ

(2 t, s + t cos^{2} (s) + s^{2} t^{4}) (t cos (s))

= (2, t s + t cos^{2} (s) + t^{4} s^{2}) (t cos (s))

括弧を分配する

= (t cos (s)) \cdot 2 t, s + (t cos (s)) t cos^{2} (s) + (t cos (s)) s^{2} t^{4}

= 2 t (t cos (s)), s + t cos^{2} (s) (t cos (s)) + t^{4} s^{2} (t cos (s))