3 years ago

Use the formula to evaluate the series 3+6+12+24+48+96

Mathematics

2 answers:

marysya [2.9K]3 years ago

6 0

Multiplication by 2.

sammy [17]3 years ago

3 0

I do not know the formula you need to sue but the answer is 189.

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Evaluate i^31 please help

Nadya [2.5K]

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;

$= {( - 1) }^{15} \times i$

This simplifies to

$= - 1 \times i$

$= - i$

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tino4ka555 [31]

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