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triple-plus-expression MCQ Questions for Class 9

triple-plus-expression se related questions ko ek jagah revise karein. Har question me bilingual content, answer feedback aur explanation available hai.

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2 questions tagged with triple-plus-expression.

Question 1/2 Medium Mathematics Sequences and Progressions Recursive rule Class 9 Level 46

यदि \(a_1=5\) और \(a_{n+1}=3a_n+n+2\) है तो \(a_3\) क्या होगा?

If \(a_1=5\) and \(a_{n+1}=3a_n+n+2\), what is \(a_3\)?

Explanation opens after your attempt
Correct Answer

C. (58)

Step 1

Concept

\(a_2=18\) and \(a_3=3\times18+2+2=58\). Exam tip: do not forget to change (n).

Step 2

Why this answer is correct

The correct answer is C. (58). \(a_2=18\) and \(a_3=3\times18+2+2=58\). Exam tip: do not forget to change (n).

Step 3

Exam Tip

\(a_2=18\) और \(a_3=3\times18+2+2=58\) है। (n) का मान बदलना न भूलें।

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Question 2/2 Medium Mathematics Sequences and Progressions Recursive rule Class 9 Level 46

यदि \(a_1=5\) और \(a_{n+1}=3a_n+n+2\) है तो \(a_2\) क्या होगा?

If \(a_1=5\) and \(a_{n+1}=3a_n+n+2\), what is \(a_2\)?

Explanation opens after your attempt
Correct Answer

B. (18)

Step 1

Concept

\(a_2=3\times5+1+2=18\). Exam tip: use (n=1) for the next term.

Step 2

Why this answer is correct

The correct answer is B. (18). \(a_2=3\times5+1+2=18\). Exam tip: use (n=1) for the next term.

Step 3

Exam Tip

\(a_2=3\times5+1+2=18\) है। अगले पद के लिए (n=1) रखें।

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