Can someone help me question: 2,3 and 4 ?

Q2 Truth Table 5 Points Build and show the complete Truth table for (p ^q) V-(p^r) Please select file(s) Select file(s) Save Answer Q3 5 Points Prove or disprove using a Truth Table (P Hr) ^-93-(pVq) ->r Please select file(s) Select file(s) Save Answer Q4 5 Points Prove or disprove using a Truth Table -(p+q) = -pVq Please select file(s) Select file(s) search