Sec∅ = 1/cos∅
= 1/cos(240)
= 1/cos(180 + 60)
= 1/-cos(60)
= 1/(-1/2)
= -2
Answer:
.
Explaining:
The ratios of the sides of a right triangle are called trigonometric ratios. Three common trigonometric ratios are the sine (sin), cosine (cos), and tangent (tan). These are defined for acute angle.
In these definitions, the terms opposite, adjacent, and hypotenuse refer to the lengths of the sides.
-1.55555555555555555555555555555555555555
