What is expand (t-2)cos(2pit) ?

The solution to expand (t-2)cos(2pit) is tcos(2pit)-2cos(2pit)

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expand (t-2)cos(2pit)

expand

(t - 2) cos (2 π t)

t cos (2 π t) - 2 cos (2 π t)

Solution steps

(t - 2) cos (2 π t)

= cos (2 π t) (t - 2)

Apply the distributive law:

a (b - c) = ab - a c

a = cos (2 π t), b = t, c = 2

= cos (2 π t) t - cos (2 π t) \cdot 2

= t cos (2 π t) - 2 cos (2 π t)

2 e^{- x} x - e^{- x} (x^{2} - 16)

(1 - e^{i x})^{2}

(x + 5 - 3) \cdot (x + 5 + 3)

\frac{e ^{s}}{s ( s ^{2} + 1 )}

3 (x + y)^{2} (1 + \frac{d y}{d x})

What is expand (t-2)cos(2pit) ?
The solution to expand (t-2)cos(2pit) is tcos(2pit)-2cos(2pit)