MCQ
$\int_{}^{} {(1 + 2x + 3{x^2} + 4{x^3} + ......)\;dx = } $
- A${(1 + x)^{ - 1}} + c$
- ✓${(1 - x)^{ - 1}} + c$
- C${(1 - x)^{ - 1}} - 1 + c$
- Dએકપણ નહીં.
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$\left| {\begin{array}{*{20}{c}} {{{\log }_e}\,a_1^ra_2^k}&{{{\log }_e}\,a_2^ra_3^k}&{{{\log }_e}\,a_3^ra_4^k} \\ {{{\log }_e}\,a_4^ra_5^k}&{{{\log }_e}\,a_5^ra_6^k}&{{{\log }_e}\,a_6^ra_7^k} \\ {{{\log }_e}\,a_7^ra_8^k}&{{{\log }_e}\,a_8^ra_9^k}&{{{\log }_e}\,a_9^ra_{10}^k}\end{array}} \right| = 0 $
તો ગણ $S$ માં રહેલા ઘટકોની સંખ્યા મેળવો.