3 years ago

It is easy to create good photographs of mountains because you can always tell how big they are. True False

Computers and Technology

2 answers:

Tom [10]3 years ago

6 0

Fals because there is no any numbers.

Tanya [424]3 years ago

5 0

False

From afar it may be difficult to be sure how big the mountains actually are

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3 years ago

: Show that the propositions (p ∨ q) ∧ (¬p ∨ r) and (p ∧ r) ⊕ (¬p ∧ q) are logically equivalent.

Ipatiy [6.2K]

Answer:

$(p\vee q)\wedge(\neg p\vee r)\equiv(p\wedge r)\vee(\neg p\wedge q)$

Explanation:

The statements are logically equivalent if they have the same truth tables. So let´s use truth tables in order to determine if they are logically equivalent or not:

The picture that I attached you shows the truth table for each case. As you can see in the highlight columns:

$(p\vee q)\wedge(\neg p\vee r)\equiv(p\wedge r)\vee(\neg p\wedge q)$

They are logically equivalent because they have exactly the same truth values between each other. Hence, we can conclude that they are logically equivalent.