In 
, m
= 90°. If s = 4 and t = 5, find the exact value of cos S.
A. 
or 
B. 
or 
C. 
D. None of These
Answer: A
Mathematics
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A. ? B. ? + 2 C. ? - 2 D. 2
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A. linear function B. constant function C. reciprocal function D. absolute value function
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A. 10 B. 26 C. 30 D. 20
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?Solve the system of linear equations
using the inverse matrix 
.
A. ?
B. ?
C. ?
D. ?
E. ?
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