Academics – Mathematics : 2018/JUL/04
Question
Q4. a. Solve the following system of equations for a, b and c:
3a + b - 2c = 4
a - 2b + c = 6
7a - 6b - c = 10 (10)
b. The sag, y meters, in a cable of length L meters stretched between two supports, x meter apart, as illustrated in Fig Q4(b), is given by the formula L = (8y2)/3x + x
Calculate the distance x when L is 75m and y is 2.4m (6)
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