Engineering Board Exam Reviewer · Order and Degree of Differential Equations · easy

Determine the order and degree of d3y/dx3+≤ft(dy/dx )4+y=0.

  1. Order 3, degree 4
  2. Order 3, degree 1
  3. Order 1, degree 4
  4. Order 4, degree 3

Answer

B. Order 3, degree 1

Solution

The highest derivative is d3y/dx3 (order 3) and it appears to the first power (degree 1). The power 4 belongs to a lower derivative.

More Order and Degree of Differential Equations questions

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  3. Determine the order and degree of x≤ft(d3y/dx3 )2+≤ft(dy/dx )4=y.
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  8. Determine the order and degree of dy/dx=sqrt(1+d2y/dx2).
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