Solve the equation.(7.2)2 = (13.2)2 + (15.4)2 - 2(13.2)(15.4)cos ? for 0° < ? < 90°
A. {29.8°}
B. {27.8°}
C. {58.8°}
D. {25.8°}
Answer: B
Mathematics
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Classify the equation as a contradiction, an identity, or a conditional equation. 2(2x - 17) - 4x + 34 = 0
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A. ln 6 - ln 1
B. 
ln 27
C. 
ln 16 - ln 8
D. 
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