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You need to use logic. Wick wouldn't have given this task if something was greater. Therefore, they are equal. The number is 0.783 :)

Nonsense. I haven't dealt with this for ages, but in this situation, if my memory serves me right, the second integral can be represented as the product of 2 integrals: from the square of x and the square of y, i.e., it is essentially equal to the square of the first, the value of which is less than one. And 7th-grade math reminds us that a^2 < a, if 0 < a < 1.

P.S. And the numerical value of the first one is also incorrectly stated; it's only 1/3. Why are you feeding Rapper false information; he'll fail the exam.