Question

Find the value of :

$\sqrt[4]{ - 64 {a}^{4} }$

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Answer 1

Solution:-

⁴√-64a⁴

=> a× ⁴√ 16 × 4

=> a × ⁴√4 × 4 × 4

=> a × ³√4

=>³√4a.

Answer 2

Answer:

Step-by-step explanation:

[-64a^4]^1/4 = [-1]^1/4 [2√2a]^4]^1/4

                    = [-1]^1/4 2√2a

                     = 2√2[-1]^1/4  

                  four answers  2√2[-i]^1/2  gives 2

                                          2√2[i]^1/2     gives 2