3 years ago

Write the rule for the nth term of each sequence a. 7,4,1, -2, ... b. -11, -3,5, 13, ...

Mathematics

1 answer:

Salsk061 [2.6K]3 years ago

4 0

Answer:

The answer for A is: - 3n+11

The answer for B is: 7n-18

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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

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$= - i$

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