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`y=ae^(mx)+be^(-mx)` satisfies which of the following differential equations?A. `(dy)/(dx)-my=0`B. `(dy)/(dx)+xy=0`C. `(d^(2)y)/(dx^(2))+m^(2)y=0`D. `(d^(2)y)/(dx^(2))m^(2)y=0` |
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Answer» Correct Answer - D We have, `y=ae^(mx)+be^(-mx)` `rArr" "(dy)/(dx)=mae^(mx)-mbe^(-mx)` `rArr" "(d^(2)y)/(dx^(2))=m^(2)(ae^(mx)+be^(-mx))` `rArr" "(d^(2)y)/(dx^(2))=m^(2)yrArr (d^(2)y)/(dx^(2))-m^(2)y=0` Hence, option (d) is correct |
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