Answer:
The value of cos Ф is ± 
Step-by-step explanation:
There are important rules for sin Ф and cos Ф
∵ sin Ф = 
∴ sin²Ф = 
∴ sin²Ф = 
→ By using the third rule above
∵ cos²Ф = 1 - sin²Ф
∴ cos²Ф = 1 - 
∴ cos²Ф = 
→ Take square root for both sides
∴ cos Ф = ± 
∴ The value of cos Ф is ± 
From least to Greatest: 8/100, 7/10, 3/5
Those two added together are equal to
14 and
Answer:
25 + 25=50 Divided by 5 =10
Step-by-step explanation:
25 + 25
=50
50 DIVIDED BY 5
=10
I think it’s F
Hopefully it’s right