What is expand (8x+5y)cos(5y)+sin(8x+5y)sin(5y) ?

The solution to expand (8x+5y)cos(5y)+sin(8x+5y)sin(5y) is 8xcos(5y)+5ycos(5y)+sin(8x+5y)sin(5y)

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expand (8x+5y)cos(5y)+sin(8x+5y)sin(5y)

expand

(8 x + 5 y) cos (5 y) + sin (8 x + 5 y) sin (5 y)

8 x cos (5 y) + 5 y cos (5 y) + sin (8 x + 5 y) sin (5 y)

Solution steps

(8 x + 5 y) cos (5 y) + sin (8 x + 5 y) sin (5 y)

= cos (5 y) (8 x + 5 y) + sin (8 x + 5 y) sin (5 y)

Expand

cos (5 y) (8 x + 5 y) : 8 x cos (5 y) + 5 y cos (5 y)

= 8 x cos (5 y) + 5 y cos (5 y) + sin (8 x + 5 y) sin (5 y)

cos (x) (cos (x) - 4) + 7

10 (11 + 7)

\frac{1}{s ^{2} ( s ^{2} + 4 )}

(5 x^{2} + 10 x y, 5 x^{2} - 15 y^{2}) \cdot (\frac{3}{5}, \frac{4}{5})

\frac{2 x - 1}{( x + 2 ) ( x - 3 )}

What is expand (8x+5y)cos(5y)+sin(8x+5y)sin(5y) ?
The solution to expand (8x+5y)cos(5y)+sin(8x+5y)sin(5y) is 8xcos(5y)+5ycos(5y)+sin(8x+5y)sin(5y)