अनुक्रम \(20,17,14,11,\ldots\) का (8)वाँ पद क्या है?
What is the (8)th term of the sequence \(20,17,14,11,\ldots\)?
Explanation opens after your attempt
A. (-1)
Concept
(a_8=20+7(-3)=-1). In a decreasing sequence, take the common difference as negative.
Why this answer is correct
The correct answer is A. (-1). (a_8=20+7(-3)=-1). In a decreasing sequence, take the common difference as negative.
Exam Tip
(a_8=20+7(-3)=-1)। घटती श्रेढ़ी में समान अंतर ऋणात्मक लें।
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