What is expand-2cos(2(x-pi/4))-3 ?

The solution to expand-2cos(2(x-pi/4))-3 is -2sin(2x)-3

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expand-2cos(2(x-pi/4))-3

expand

- 2 cos (2 (x - \frac{π}{4})) - 3

- 2 sin (2 x) - 3

Solution steps

- 2 cos (2 (x - \frac{π}{4})) - 3

2 cos (2 (x - \frac{π}{4})) = 2 sin (2 x)

= - 2 sin (2 x) - 3

r^{5^{^{'}}} (3 r^{5} + 4)

50 (47 - 6 ln (50))

(7 x + 4 y = 1, 3) (5 x - 2 y = 19)

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

(a + h)^{2} - 1

What is expand-2cos(2(x-pi/4))-3 ?
The solution to expand-2cos(2(x-pi/4))-3 is -2sin(2x)-3