Answer:

Step-by-step explanation:
Given :

Multiply numerator and denominator by 2 :

[Divide both sides by 5 as it is a common factor]

Answer:
I need helpppppppppppppppppppppppplz
Answer:
Sin(t) =
and 
Step-by-step explanation:
The secant function is the reciprocal function of the cosine function. Therefore, given that
then, if
then
.
On the other hand, if cos (t) = 1/2 ⇒ t = ±
Then, the sin(
) = 
Answer:
b
Step-by-step explanation:
-1
Complementary angles mean the angles add up to 80 and Supplementary angles mean the angles add up to 180. So 120 doesn't have those kinds of angle pairs. The only combo i can think of is 40,40,40.