क्रम \(50,45,40,\ldots\) के (n)वें पद का सही नियम कौन सा है?
Which is the correct rule for the (n)th term of \(50,45,40,\ldots\)?
Explanation opens after your attempt
A. \(a_n=55-5n\)
Concept
Putting (n=1) gives (55-5=50). This rule decreases by (5) each time.
Why this answer is correct
The correct answer is A. \(a_n=55-5n\). Putting (n=1) gives (55-5=50). This rule decreases by (5) each time.
Exam Tip
(n=1) रखने पर (55-5=50) मिलता है। यह हर बार (5) घटाने वाला नियम है।
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