What is expand 1/3 (cosh(9eni)-cosh(6eni)) ?

The solution to expand 1/3 (cosh(9eni)-cosh(6eni)) is 1/3 cosh(9ein)-1/3 cosh(6ein)

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expand 1/3 (cosh(9eni)-cosh(6eni))

expand

\frac{1}{3} (cosh (9 e ni) - cosh (6 e ni))

\frac{1}{3} cosh (9 e in) - \frac{1}{3} cosh (6 e in)

Solution steps

\frac{1}{3} (cosh (9 e ni) - cosh (6 e ni))

= \frac{1}{3} (cosh (9 e in) - cosh (6 e in))

Apply the distributive law:

a (b - c) = ab - a c

a = \frac{1}{3}, b = cosh (9 e ni), c = cosh (6 e ni)

= \frac{1}{3} cosh (9 e ni) - \frac{1}{3} cosh (6 e ni)

= \frac{1}{3} cosh (9 e in) - \frac{1}{3} cosh (6 e in)

(77 + 4 x - x^{2}) d x

(s + 2 + j^{2} 3) (s + 2 - j^{2} 3) (s + 10)

(- 1, - 3) y (2, 3)

sec (b) (cos (c) b + 1)

(0.2 s + 10) \frac{d}{d x} (0.2 s + 10)

What is expand 1/3 (cosh(9eni)-cosh(6eni)) ?
The solution to expand 1/3 (cosh(9eni)-cosh(6eni)) is 1/3 cosh(9ein)-1/3 cosh(6ein)