Teaching EMRS TGT Mock Test 2023 Mathematics Differential Calculus Second Order Derivatives

अगर x = \(\rm {{1\ -\ t}\over {1\ +\ t}}\) और y = \(\rm {2t\over {1\ +\ t}}\) तो \(\rm {d^2y\over dx^2}\) का मान ज्ञात करें।

1
\(\rm\frac{1}{y}\)
2
\(\rm\frac{-1}{y}\)
3
\(\rm {{-1}\over {y^3}}\)
4
0
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