JEE Main 2020 (Online) 3rd September Evening Slot | Sequences and Series Question 121 | Mathematics

JEE Main 2020 (Online) 3rd September Evening Slot

Numerical

-0

If m arithmetic means (A.Ms) and three geometric means (G.Ms) are inserted between 3 and 243 such that 4^th A.M. is equal to 2^nd G.M., then m is equal to _________ .

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JEE Main 2020 (Online) 3rd September Morning Slot

Numerical

-0

The value of $${\left( {0.16} \right)^{{{\log }_{2.5}}\left( {{1 \over 3} + {1 \over {{3^2}}} + ....to\,\infty } \right)}}$$ is equal to ______.

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JEE Main 2020 (Online) 9th January Evening Slot

Numerical

-0

The number of terms common to the two A.P.'s 3, 7, 11, ....., 407 and 2, 9, 16, ....., 709 is ______.

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JEE Main 2020 (Online) 8th January Evening Slot

Numerical

-0

The sum, $$\sum\limits_{n = 1}^7 {{{n\left( {n + 1} \right)\left( {2n + 1} \right)} \over 4}} $$ is equal to ________.

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