$\"\"$

(1)

Step 1:

Find the Thevinins equivalent resistance.

1.Open the load resistor.

2.Open Current Sources and Short Voltage Sources.

3.Calculate the Open Circuit Resistance. The resultant open circuit resistance is the thevenin Resistance (R_TH).

Redraw the circuit.

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Observe the circuit.

The resistors $\"\"$ and $\"\"$ are in series.

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Step 2:

Redarw the circuit replacing with series resistor $\"\"$ .

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The resistors $\"\"$ and $\"\"$ are in parallel.

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$\"\"$ .

The resistors $\"\"$ and $\"\"$ are in series.

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$\"\"$ .

Equivalent thevinins resistance is $\"\"$ .

Solution :

Equivalent thevinins resistance is $\"\"$ .