In Problems 19 and 20 verify that the indicated expression is an implicit solution of the given first-order differential equation. Find at least one explicit solution in each case. Use a graphing utility to obtain the graph of an explicit solution. Give an interval I of definition of each solution

Step 1</p>

In this problem we have to verify that the indicated expression is an implicit solution of the given first-order differential equation

.

Step 2</p>

We have, .

Or,

Taking implicit differentiation of the function,

We get, .

Or,

Or,

Or, .

Therefore we can say that the indicated expression is an implicit solution of the given first-order differential equation .