What is expand t^2sin(t)-2(-tcos(t)+sin(t)) ?

The solution to expand t^2sin(t)-2(-tcos(t)+sin(t)) is (t^2-2)/(csc(t))+2tcos(t)

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expand t^2sin(t)-2(-tcos(t)+sin(t))

expand

t^{2} sin (t) - 2 (- t cos (t) + sin (t))

\frac{t ^{2} - 2}{csc ( t )} + 2 t cos (t)

Solution steps

t^{2} sin (t) - 2 (- t cos (t) + sin (t))

Expand

- 2 (- t cos (t) + sin (t)) : 2 t cos (t) - 2 sin (t)

= t^{2} sin (t) + 2 t cos (t) - 2 sin (t)

Rewrite using trig identities

= \frac{t ^{2} - 2}{csc ( t )} + 2 t cos (t)

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

\frac{1}{( x ^{2} y ^{2} + x ^{2} z ^{2} ) x}

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

(- a sin (z) y + b cos (z)) \cdot 2 r sin (z)

\frac{e ^{- 2 s} + 1}{( s - 2 ) ( s - 1 )}

What is expand t^2sin(t)-2(-tcos(t)+sin(t)) ?
The solution to expand t^2sin(t)-2(-tcos(t)+sin(t)) is (t^2-2)/(csc(t))+2tcos(t)