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Kobotan [32]
3 years ago
10

Q2.a) Is the equality √a^4 = a valid for all values of a? Explain.​

Mathematics
1 answer:
allochka39001 [22]3 years ago
7 0

Answer:

The equality is only true for a = 0\ and\ 1, not for all values

Step-by-step explanation:

Given

(\sqrt a)^4 = a

Required

Determine if it is valid

(\sqrt a)^4 = a

Evaluate the exponent

(a^\frac{1}{2})^4 = a

a^\frac{1*4}{2} = a

a^2 = a

Rewrite as:

a^2 - a = 0

Factorize

a(a- 1) = 0

a =0\ or\ a - 1 = 0

a =0\ or\ a = 1

<em>The equality is only true for </em>a = 0\ and\ 1<em>, not for all values</em>

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