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JEE Main & Advanced Mathematics Sequence & Series Question Bank Numerical Value Type Questions - Progressions

  • question_answer
    Sum of first n positive terms of an A.P. is given by\[{{S}_{n}}=\left( 1+2{{T}_{n}} \right)\left( 1-{{T}_{n}} \right)\]. If the value of \[{{T}_{2}}^{2}\] is \[\frac{\sqrt{2}-1}{k\sqrt{2}}\] then find k.

    Answer:

    2.00


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