1.

Which of the following statements is true?A. For instability, at least one joint of the structure should be able to displace without causing a change in length of all the members.B. For instability, at least one joint of the structure should be able to displace without causing a change in length of at least one of the members.

A. Only A
B. Only B
C. Both A and B
D. None of these
Answer» C. Both A and B


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