What is 2sin(1500t-(pi/2)) ?

The solution to 2sin(1500t-(pi/2)) is -2cos(1500t)

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simplify 2sin(1500t-(pi/2))

simplify

2 sin (1500 t - (\frac{π}{2}))

- 2 cos (1500 t)

Solution steps

2 sin (1500 t - (\frac{π}{2}))

Rewrite using trig identities

= 2 (- cos (1500 t))

Remove parentheses:

(- a) = - a

= - 2 cos (1500 t)

\frac{2}{n ^{2} π} cos (nπ)

sin (\frac{1}{tan ( x )})

2 (cos (x - \frac{2 π}{3}) + 2)

sin (\frac{x}{2} - 2 π)

cos (nπ) + cos (- nπ)