((p v q) → ¬a) = O (a → (-qa-p)) O (a → (-qvp) O (a → (qn-p) O (a → (-qv-p))

Q: proofl Ant>pl An

A: Solution

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A:

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A: Since you have asked multiple question, we will solve the first question for you. If you want any…

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Q: 2-f) -さじinxtcasy) shou that Xメ 7.

A: #Given; z=e^-t(sinx+cosy)  then we have to show Zxx+Zyy=Zt

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A: We will find out the required value.

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