Posted by **rishabh gupta** on Monday, May 6, 2013 at 1:07pm.

Consider the following standing wave, (all units are SI)

z=0.2sin(0.4y)cos(350t)

(a) The values of t where the displacement at all values of y equals to zero are of the form : t=c+dn, where n=0,±1,±2,3, etc.

What is c?

What is d?

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