展开 [cos(7t)(5+sinh((3t)/2)+e^{2t})]

解答

展开

[cos (7 t) (5 + sinh (\frac{3 t}{2}) + e^{2 t})]

5 cos (7 t) + cos (7 t) sinh (\frac{3 t}{2}) + e^{2 t} cos (7 t)

求解步骤

cos (7 t) (5 + sinh (\frac{3 t}{2}) + e^{2 t})

打开括号

= cos (7 t) \cdot 5 + cos (7 t) sinh (\frac{3 t}{2}) + cos (7 t) e^{2 t}

= 5 cos (7 t) + cos (7 t) sinh (\frac{3 t}{2}) + e^{2 t} cos (7 t)

\frac{d}{d x} ((e^{x}) (5 e^{5 x} - 25 x))

e x p an d (4 x - 8 y = - 1, 4) (2 x - 4 y = - 7)

e x p an d (2 x - 6 x y^{3}) (e^{t})

e x p an d 2 l e f t (3, 4, 5) - 3 l e f t (- 1, - 2, - 3)

e x p an d \frac{( x ^{2} + 1 ) ^{2}}{2}