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The consecutive AP terms are (-17,z,23). What are (z) and the common difference?
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Answer and explanation
Correct answer: (z=3,d=20)
The middle term is the average of the extremes, so (z=\frac{-17+23}{2}=3) and (d=20). In exams, handle signs carefully when averaging negatives.
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What is the correct answer to this question?
(z=3,d=20)
Why is this the correct answer?
The middle term is the average of the extremes, so (z=\frac{-17+23}{2}=3) and (d=20). In exams, handle signs carefully when averaging negatives.
Which subject and chapter does this question cover?
This is a Class 10 Mathematics question. Chapter: Arithmetic Progressions (AP). Topic: Introduction to APs and common difference..
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