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

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

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simplify-3cos(x-pi/2)

simplify

- 3 cos (x - \frac{π}{2})

- 3 sin (x)

Solution steps

- 3 cos (x - \frac{π}{2})

Rewrite using trig identities

= - 3 sin (x)

- sin (θ - 9 0^{\circ})

cos^{2} (π - x)

sec (θ + 18 0^{\circ})

sec (27 0^{\circ} - x)

\frac{( - cos ( - 2 πn ) )}{nπ}

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