Ask Question
10 November, 01:25

What is the sign of - a^4/3 when a is less than zero

A positive

B negative

C zero

+1
Answers (1)
  1. 10 November, 01:52
    0
    Answer: B. Negative

    Reasoning:

    'a' is less than 0, so we write a < 0

    Since a 0. Raising a negative to an even exponent will make the result positive. Example: (-2) ^4 = 16

    Applying the cube root to some positive number leads to some other positive number.

    So far we see that the expression a^ (4/3) is positive

    The final result however is negative because the negative out front flips things from positive to negative.

    It turns out it doesn't matter if 'a' is positive or negative. As long as 'a' is nonzero, then - a^ (4/3) is negative. If a = 0, then the whole thing is 0.
Know the Answer?
Not Sure About the Answer?
Find an answer to your question 👍 “What is the sign of - a^4/3 when a is less than zero A positive B negative C zero ...” in 📗 Mathematics if the answers seem to be not correct or there’s no answer. Try a smart search to find answers to similar questions.
Search for Other Answers