किसी अनुक्रम में \(b_1=6\) और \(b_n=3b_{n-1}-n\) है। \(b_4\) का मान क्या होगा?
In a sequence, \(b_1=6\) and \(b_n=3b_{n-1}-n\). What is the value of \(b_4\)?
Explanation opens after your attempt
B. एक सौ इकतीस(131)
Concept
We get \(b_2=16\), \(b_3=45\), and \(b_4=131\). In exams, handle both multiplication and subtraction carefully.
Why this answer is correct
The correct answer is B. एक सौ इकतीस / (131). We get \(b_2=16\), \(b_3=45\), and \(b_4=131\). In exams, handle both multiplication and subtraction carefully.
Exam Tip
\(b_2=16\), \(b_3=45\) और \(b_4=131\) मिलता है। परीक्षा में गुणा और घटाव दोनों ध्यान से करें।
Login to save your score, XP, coins and progress.
