should give better approximations. Suppose that we want to approximate 1.2
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. The exact value is found using the function, provided we use the correct x-value. Since f(x)= 2x−1
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, the x-value that gives 1.2
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is x= To find this, just set 2x−1=1.2. Thus, the exact answer to 6 decimal places is 1.2
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