3 years ago

8 (6× + 5) + 2× equivalent

Mathematics

1 answer:

Licemer1 [7]3 years ago

5 0

8(6x + 5) + 2x
8(6x) + 8(5) + 2x
48x + 40 + 2x
50x + 40

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Evaluate i^31 please help

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ANSWER

${i}^{31} = - i$

EXPLANATION

We want to evaluate

${i}^{31}$

Use indices to rewrite the expression as:

$= {i}^{30} \times i$

We know that

${i}^{2} = - 1$

So we rewrite the expression to obtain;

$= ({ {i}^{2}) }^{15} \times i$

This gives us;

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This simplifies to

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