X = ABC = 60

運算式 22: "D" Subscript, 2 , Baseline equals "A" Subscript, 2 , Baseline

運算式 23: "M" Subscript, 1 , Baseline equals StartFraction, "C" Subscript, 1 , Baseline Over 2 , EndFraction

運算式 24: "M" Subscript, 2 , Baseline equals StartFraction, "B" Subscript, 2 , Baseline Over 2 , EndFraction

運算式 25: "F" Subscript, 1 , Baseline equals "M" Subscript, 1 , Baseline plus 0.2 5cosine theta Subscript, 1 , Baseline

運算式 26: "F" Subscript, 2 , Baseline equals "M" Subscript, 2 , Baseline plus 0.2 5sine theta Subscript, 1 , Baseline

運算式 27: theta Subscript, 1 , Baseline equals negative 45 minus 30

Graphs

運算式 29: "y" less than 25

運算式 30: polygon left parenthesis, "A" , "B" , "C" , right parenthesis

運算式 31: polygon left parenthesis, "A" , "B" , "M" , "D" , "M" , "C" , right parenthesis

運算式 32: left parenthesis, 0.2 5cos 45 , 0.2 5 "t" sin 45 , right parenthesis

運算式 33: left parenthesis, 0.2 5 "t" cos 45 , 0.2 5sin 45 , right parenthesis

運算式 34: left parenthesis, "F" Subscript, 1 , Baseline plus StartFraction, 0.2 5 "t" cos left parenthesis, theta Subscript, 1 , Baseline minus 135 , right parenthesis Over StartRoot, 2 , EndRoot , EndFraction , "F" Subscript, 2 , Baseline plus StartFraction, 0.2 5 "t" sin left parenthesis, theta Subscript, 1 , Baseline minus 135 , right parenthesis Over StartRoot, 2 , EndRoot , EndFraction , right parenthesis

運算式 35: left parenthesis, "F" Subscript, 1 , Baseline plus StartFraction, 0.2 5 "t" cos left parenthesis, theta Subscript, 1 , Baseline plus 135 , right parenthesis Over StartRoot, 2 , EndRoot , EndFraction , "F" Subscript, 2 , Baseline plus StartFraction, 0.2 5 "t" sin left parenthesis, theta Subscript, 1 , Baseline plus 135 , right parenthesis Over StartRoot, 2 , EndRoot , EndFraction , right parenthesis

Points

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