नियम \(a_n=140-9n\) से बनने वाला (8)वाँ पद क्या है?
What is the (8)th term formed by \(a_n=140-9n\)?
Explanation opens after your attempt
C. (68)
Concept
Putting (n=8), \(a_8=140-72=68\). Pay attention to the sign in subtraction rules.
Why this answer is correct
The correct answer is C. (68). Putting (n=8), \(a_8=140-72=68\). Pay attention to the sign in subtraction rules.
Exam Tip
(n=8) रखने पर \(a_8=140-72=68\) है। घटाव वाले नियम में चिन्ह पर ध्यान दें।
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