What is simplify-2cos(3x-pi/2) ?

The solution to simplify-2cos(3x-pi/2) is -2sin(3x)

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simplify-2cos(3x-pi/2)

simplify

- 2 cos (3 x - \frac{π}{2})

- 2 sin (3 x)

Solution steps

- 2 cos (3 x - \frac{π}{2})

Rewrite using trig identities

= - 2 sin (3 x)

- cot (18 0^{\circ} - x)

tan (arccos (\frac{x}{5}))

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

sin (- x) + sin (x)

cos (72 0^{\circ} + x)

What is simplify-2cos(3x-pi/2) ?
The solution to simplify-2cos(3x-pi/2) is -2sin(3x)