If i is the greatest of the definite int...

If i is the greatest of the definite integrals `I_1=int_0^1 e^-x cos ^2 dx ,I_2=int_0^1 e^(-x^2) cos^2 x dx and I_3=int_0e^(-x^2)dx , I_4=int_0^1e^-(x^2/2)dx` then (A) `I_1` (B) `I_2` (C) `I_3` (D) `I_4`

`l=l_1`

`l=l_2`

`l=l_3`

`l=l_4`

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