Question

Show that the statement, p: if a is a real number such that a^3 + 4a =0, then a is 0″, is true by direct method?​

Answer 1

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$\Large\fbox{\color{purple}{QUESTION}}$

Show that the statement, p: if a is a real number such that a^3 + 4a =0, then a is 0″, is true by direct method?

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$\Large\fbox{\color{purple}{ SOLUTION }}$

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➡️Let q and r are the statements given by q: a is a real number such that a^3 + 4a =0

➡️r: a is 0.

➡️let q be true then

➡️a is a real number such that a^3 + 4a =0

➡️a is a real number such that a(a^2 + 4) =0

➡️a = 0

➡️r is true

➡️So, q is true and r is true, so p is true.

$\Large\mathcal\green{FOLLOW \: ME}$

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Answer 2

Answer:

SOLUTION:-

⭐ GIVEN ⭐

✏️Let q and r are the statements given by q: a is a real number such that a^3 + 4a =0

✏️r: a is 0.

✏️let q be true then

✏️a is a real number such that

a^3 + 4a =0

✏️a is a real number such that

a(a^2 + 4) =0

✏️a = 0

✏️r is true

➡️So, q is true and r is true, so p is true.✔✔

Step-by-step explanation:

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