x(t) * d(tt0) = x(t0)
as per this rule

at t = 3; exp(t*t) = e^(9) which is a constant! so pull it out of integral. integral of delta over inf to +inf = 1;so ans = e^(9).

at t =1; 0 so ans = 0

at n = 2; ans = e^(4);
Hope this helps
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1)t=3, Ans=e^(9)
2)t=1 Ans=0
3)t=2 Ans=e^4
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