Class 11MathematicsSequences and Seriesnth term of special series, Sum to n terms and Infinite number of terms
Easy$a_{n} = (n-1)(2-n)(3+n)$ द्वारा परिभाषित अनुक्रम का $20$ वाँ पद क्या है?
- A$-7866$
- B$-7860$
- C$-7872$
- D$-7854$
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यदि $1^2 + 2^2 + 3^2 + \dots + 2009^2 = (2009)(335)(4019)$ और $(1)(2009) + 2(2008) + 3(2007) + \dots + 2009(1) = (2009)(335)(x)$ है,तो $x$ का मान ज्ञात कीजिए:
$1^2+\left(1^2+2^2\right)+\left(1^2+2^2+3^2\right)+\ldots+\left(1^2+2^2+\ldots+n^2\right)=$
$\frac{1 \times 2^2 + 2 \times 3^2 + \ldots + 100 \times 101^2}{1^2 \times 2 + 2^2 \times 3 + \ldots + 100^2 \times 101}$ का मान क्या है?
DifficultJEE MAIN 2024
View Solution$1 \times 3 \times 5, 3 \times 5 \times 7, 5 \times 7 \times 9, \dots$ अनुक्रम के प्रथम $n$ पदों का समांतर माध्य क्या होगा?
Difficult
View Solutionश्रेणी $2 + 7 + 14 + 23 + 34 + \dots$ का $99^{th}$ पद है
Difficult
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