Remember, x^-1=1/x
so
f(-1)=4(7)^-1=4(1/7)=4/7
f(2)=4(7)^2=4(49)=196
<h3>
Answer: Invalid</h3>
Explanation:
The conclusion should be due to the hypothetical syllogism rule (similar to the transitive rule).
You can make a truth table to show that the premises and can both be true at the same time, but the conclusion is false. Whenever you have all true premises and a false conclusion, then the argument is invalid. True premises must lead to a true conclusion.
Answer:
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Step-by-step explanation: