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Chapter 8: Q. 303 (page 824)

In the following exercises, solve.
r-1=r-1

Short Answer

Expert verified

The solutions of the given equation are r=1and r=2.

Step by step solution

01

Step 1. Given information.

The given equation is:

r-1=r-1

02

Step 2. Solve the equation.

Take square on both sides.

(r-1)2=(r-1)2r-1=(r-1)20=(r-1)2-(r-1)0=(r-1)(r-1-1)0=(r-1)(r-2)r=1,2

03

Step 3. Conclusion.

The solutions of the given equation are r=1and r=2.

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