What is expand (cos(x)+k)(k-sin(x)) ?

The solution to expand (cos(x)+k)(k-sin(x)) is kcos(x)-cos(x)sin(x)+k^2-ksin(x)

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expand (cos(x)+k)(k-sin(x))

expand

(cos (x) + k) (k - sin (x))

k cos (x) - cos (x) sin (x) + k^{2} - k sin (x)

Solution steps

(cos (x) + k) (k - sin (x))

Apply FOIL method

(cos (x) + k) (k - sin (x)) : k cos (x) - cos (x) sin (x) + k^{2} - k sin (x)

= k cos (x) - cos (x) sin (x) + k^{2} - k sin (x)

x (x - 3)^{2}

(x^{\frac{3}{2}} - 4 x) (x^{4} - \frac{3}{x ^{2}} + 2)

\frac{1}{( x + 2 ) ( x - 1 )}

(4 x + \frac{1}{k x})^{7}

What is expand (cos(x)+k)(k-sin(x)) ?
The solution to expand (cos(x)+k)(k-sin(x)) is kcos(x)-cos(x)sin(x)+k^2-ksin(x)