GATE Papers >> Mechanical >> 2014 >> Question No 237

Question No. 237 Mechanical | GATE 2014

Consider two solutions xt=x1t and xt=x2t of the differential equation

d2xtdt2+xt=0,t>0,such that x10=1,dx1tdtt=0=0,x20=0,dx2tdtt=0=1.

The Wronskian Wt=x1tx2tdx1tdtdx2tdt at t=π2  is


Answer : (A) 1


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