А
(-5;5)∩(-3;2)=(-3;2)
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----(-5)--------(-3)--------(2)------(5)-------
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верно
б
(4;11)∪(0;6)=(0;11)
/////////////////////////////////////////
-----(0)-------------(4)-----------(6)-------------(11)-------
///////////////////////////////////////
неверно
в
(-∞;4) ∪(1;∞)=(-∞;1) U (1;4) U (4;∞)
/////////////////////////////////////////
-----------(1)------------------(4)-----------
///////////////////////////////////////////
неверно
г
(-∞;2)∩(-2;∞)=(-2;2)
///////////////////////////////////////////////
---------(-2)----------------------(2)---------------
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верно