Question: u 3. By using the substitution 2 = y2, solve the differential equation below. (10 marks) :cy+(y43:I:2):11: =0 4. By using the substitution: at =


u 3. By using the substitution 2 = y2, solve the differential equation below. (10 marks) :cy+(y43:I:2):11: =0 4. By using the substitution: at = 65, solve the differential equation (12 marks) 1'2 15 (11" + 2 :z: = dt2 d 5. Solve the differential equation (12 marks) (1 de:+4m2+8$y+5y2=0
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