The common denominator is 35
Multiply 5/7 top and bottom by 5
Multiply 3/5 top and bottom by 7
The law of cosines is used for this purpose. It tells you
c² = a² + b² - 2ab×cos(C)
Solving for the angle C gives
C = arccos((a² + b² - c²)/(2ab))
C = arccos(( 17² + 15² - 19²)/(2×17×15))
C = arccos(153/510)
C ≈ 72.5424°
The measure of the angle opposite the longest side is about 73°.
Answer:p(x) = x^3– 4x^2+ 3x + c................................
Step-by-step explanation:
