What is expand (t^2+2t)*cos(4t) ?

The solution to expand (t^2+2t)*cos(4t) is t^2cos(4t)+2tcos(4t)

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expand (t^2+2t)*cos(4t)

expand

(t^{2} + 2 t) \cdot cos (4 t)

t^{2} cos (4 t) + 2 t cos (4 t)

Solution steps

(t^{2} + 2 t) cos (4 t)

= cos (4 t) (t^{2} + 2 t)

Apply the distributive law:

a (b + c) = ab + a c

cos (4 t) (t^{2} + 2 t) = cos (4 t) t^{2} + cos (4 t) \cdot 2 t

= cos (4 t) t^{2} + cos (4 t) \cdot 2 t

= t^{2} cos (4 t) + 2 t cos (4 t)

\frac{( 0.77 W + ( 0.61 W + 612 ) ^{2.04} )}{W}

sin (5 (t - w)) y (w)

\frac{7 x ^{2}}{( x - 4 ) ^{2} ( x + 4 ) ^{2}}

\frac{- x + 4}{8 x ^{\frac{3}{2}} ( x - 2 ) ^{\frac{3}{4}}}

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

What is expand (t^2+2t)*cos(4t) ?
The solution to expand (t^2+2t)*cos(4t) is t^2cos(4t)+2tcos(4t)