What is expand (9+2xsin(y))dx-x^2cos(y)dy ?

The solution to expand (9+2xsin(y))dx-x^2cos(y)dy is 9dx+2xsin(y)dx-x^2cos(y)dy

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expand (9+2xsin(y))dx-x^2cos(y)dy

expand

(9 + 2 x sin (y)) d x - x^{2} cos (y) d y

9 d x + 2 x sin (y) d x - x^{2} cos (y) d y

Solution steps

(9 + 2 x sin (y)) d x - x^{2} cos (y) d y

Expand

d x (9 + 2 x sin (y)) : 9 d x + 2 x sin (y) d x

= 9 d x + 2 x sin (y) d x - x^{2} cos (y) d y

\frac{4 x ^{3} - x ^{2} - 3 x - 2}{x ^{2} ( x + 1 ) ^{2}}

(sec (a) + tan (a)) (1 - sin (a))

\frac{( p - q ) ^{3}}{p + q}

sin (x) (sec (x) - csc (x))

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

What is expand (9+2xsin(y))dx-x^2cos(y)dy ?
The solution to expand (9+2xsin(y))dx-x^2cos(y)dy is 9dx+2xsin(y)dx-x^2cos(y)dy