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Arithmetic Progressions — MATHS STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 ScienceMATHSArithmetic Progressions2 Marks
Question
Find the A.M. between: 12 and -8
✓

Answer

12 and -8 Let A be the arithem atic mean of 12 and -8 Then, 12, A, -8 are in A.P $\Rightarrow\text{A}-12=-8-\text{A}$ $\Rightarrow\text{A}=\frac{12+(-8)}{2}=2$ $\therefore\text{A.M is 2}$

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