9514 1404 393
Answer:
- -√5
- 3/5
- -4/5
Step-by-step explanation:
The relevant relations are ...
sec = ±√(tan² +1)
cos = 1/sec
csc = 1/sin = ±1/√(1 -cos²)
Sine and Cosecant are positive in quadrants I and II. Cosine and Secant are positive in quadrants I and IV.
__
1. sec(θ) = -√((-2)² +1) = -√5
2. cos(θ) = 1/sec(θ) = 1/(5/3) = 3/5
3. csc(θ) = -1/√(1 -(-3/5)²) = -√(16/25) = -4/5
Answer:
Step-by-step explanation:
The domain of a function is all the allowed x values that make the function defined. There is nothing to make this function undefined. So the domain is negative infinity to positive infinity. All those x values are in the domain. In order to show your work, just show yourself plugging in those numbers.
You get 9, 0, and 1
Answer:
0.1875
Step-by-step explanation:
Hope it helps you :>
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Answer:
2
Step-by-step explanation:
Answer:
See below in bold.
Step-by-step explanation:
Ship's vector:
Horizontal component = 30 cos 30 = 25.98.
Vertical component = 30 sin(-30) = -15.
So it is <25.98, -15).
The current's vector:
Horizontal component = 5 sin 20 = 1.71.
Vertical component = 5 cos 20 = 4.7.
So it is <1.71, 4.7>.
