Answer:
cos S = 
Step-by-step explanation:
this is a 7- 24- 25 right angle with RS = 7 , then
cos S =
=
= 
Answer:
x2+12 (except the 2 in small)
Step-by-step explanation:
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Answer: (-1,2)
Step-by-step explanation:
Answer:
5
Step-by-step explanation:
Answer:
3
Step-by-step explanation: