किस समांतर श्रेणी में \(a_3=12\) और \(a_7=32\) है?
Which arithmetic progression has \(a_3=12\) and \(a_7=32\)?
Explanation opens after your attempt
Correct Answer
B. \(2,7,12,17,\ldots\)
Concept
In \(2,7,12,17,\ldots\), \(a_3=12\) and (d=5), so \(a_7=32\). Check both conditions in the options.
Why this answer is correct
The correct answer is B. \(2,7,12,17,\ldots\). In \(2,7,12,17,\ldots\), \(a_3=12\) and (d=5), so \(a_7=32\). Check both conditions in the options.
Exam Tip
\(2,7,12,17,\ldots\) में \(a_3=12\) और (d=5), इसलिए \(a_7=32\)। विकल्पों में दोनों शर्तें जांचें।
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