simplify cos(120-t)

Solution

simplify

cos (12 0^{\circ} - t)

- \frac{1}{2} cos (t) + \frac{3}{2} sin (t)

Solution steps

cos (12 0^{\circ} - t)

Rewrite using trig identities

= - \frac{1}{2} cos (t) + \frac{3}{2} sin (t)

sin (\frac{2}{cos ( 7 x )})

tan (θ - 36 0^{\circ})

y e^{2} cos (6 \cdot (- 3))

1 - sin^{2} (X)

\frac{h}{tan ( 2 0 ^{\circ} )}

What is cos(120-t) ?
The solution to cos(120-t) is -1/2 cos(t)+(sqrt(3))/2 sin(t)