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Vikentia [17]
3 years ago
15

The question is down below. pleaseee

Mathematics
1 answer:
Amiraneli [1.4K]3 years ago
8 0

Answer:

Proved below

Step-by-step explanation:

We want to prove that;

√(2yx^(-1)) × √(4xz^(-1)) × √(8zy^(-1)) = 8

Now, the √ symbol is also written by denoting the numbers attached to it as resisted to the power of ½. Thus, we have;

[(2yx^(-1))^(½)] × [(4xz^(-1))^(½)] × [(8zy^(-1))^(½)]

Simplifying this gives;

2^(½) × y^(½) × x^(-½) × 4^(½) × x^(½) × z^(-½) × 8^(½) × z^(½) × y^(-½)

Simplifying further, let's write 8 and 4 in terms of 2. Thus;

2^(½) × y^(½) × x^(-½) × (2²)^(½) × x^(½) × z^(-½) × (2³)^(½) × z^(½) × y^(-½)

This gives;

2^(½) × y^(½) × x^(-½) × (2¹) × x^(½) × z^(-½) × (2^(3/2)) × z^(½) × y^(-½)

Collecting like terms and applying laws of indices gives;

2^(½ + 1 + (3/2)) × y^(½ - ½) × x^(-½ + ½) × z^(-½ + ½)

This gives;

8y^(0) × x^(0) × y^(0)

Any Number raised to the power of zero equals 1. Thus;

8y^(0) × x^(0) × y^(0) = 8

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