Consider the following gear train shown in the figure.
Which of the following statement(s) is/are true?
1. There is one higher pair between the links.
2. The degree of freedom for the gear train is one.
3. The numbers of inputs required are two which results in non-definite motion of the output shaft.
4. Large speed reductions are possible with epicyclic gears
1 only
1 and 4 only
1, 2, 3 and 4
1, 3 and 4 only
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