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Chapter 1: Q4D. (page 48)

For f(x)=2x鈥�3 finding each value.

f(-1)+f(2)

Short Answer

Expert verified

The valuef(鈭�1)+f(2) is 鈥�4

Step by step solution

01

Step 1. From question.

The given expression isf(x)=2x鈭�3

02

Step 2. To find.

We have to find the value of f(鈭�1)+f(2)iff(x)=2x鈭�3

03

Step 3. Evaluation.

Putting x=鈥�1and 2 in f(x)=2x鈭�3and substituting we get,

f鈭�1+f2=2鈭�1鈭�3+22鈭�3=鈭�2鈭�3+4鈭�3=鈭�5+1=鈭�4

Hence, the value of f(鈭�1)+f(2)itfx=2x鈭�3is 鈥� 4.

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