What is expand (tan(2x)+1)(cos(2x)-1) ?

The solution to expand (tan(2x)+1)(cos(2x)-1) is cos(2x)+sin(2x)-tan(2x)-1

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expand (tan(2x)+1)(cos(2x)-1)

expand

(tan (2 x) + 1) (cos (2 x) - 1)

cos (2 x) + sin (2 x) - tan (2 x) - 1

Solution steps

(tan (2 x) + 1) (cos (2 x) - 1)

Apply FOIL method

(tan (2 x) + 1) (cos (2 x) - 1) : cos (2 x) + sin (2 x) - tan (2 x) - 1

= cos (2 x) + sin (2 x) - tan (2 x) - 1

2 x l e f t (3 x^{2} - 1)

\frac{( s ^{2} + 4 s + 6 )}{s ( s ^{2} + 4 s + 3 )}

(m^{2}) (m^{2})

- \frac{5 ( - 23 m - 12 n + 396 )}{108}

(2 x + y = 6,) (a x - y = 7)

What is expand (tan(2x)+1)(cos(2x)-1) ?
The solution to expand (tan(2x)+1)(cos(2x)-1) is cos(2x)+sin(2x)-tan(2x)-1