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Westkost [7]
3 years ago
15

Please answer this question now in two minutes

Mathematics
2 answers:
Ira Lisetskai [31]3 years ago
6 0

Answer:

the correct answer is (b).........

Naily [24]3 years ago
6 0

Answer:

ABC = 140

Step-by-step explanation:

ABD = 70

ABD = DBC since it is bisected

ABC = ABD + DBC

        = 70+70

ABC = 140

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What is the value of i 97 – i?<br> –i<br> 0<br> –2i<br> i Superscript 96
Valentin [98]

<em>The question is not clearly readable, but I'm assuming the expression which makes more sense, so you can have a clue</em>

Answer:

i^{97}-i=0

Step-by-step explanation:

<u>Powers of The Imaginary Unit</u>

The imaginary unit i is defined as

i=\sqrt{-1}

The first powers of i are

i^0=1

i^1=i

i^2=(\sqrt{-1})^2=-1

i^3=i.i^2=-i

i^4=i^2.i^2=1

And so on the cycle repeats every four numbers. To find the value of i^{96} we can find the remainder of 96/4=0. So i^{96}=i^0=1

The given expression is

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Factoring

i(i^{96}-1)

Since i^{96}=1

=i(1-1)=0

The required value is 0

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3 years ago
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mrs_skeptik [129]

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Step-by-step explanation:

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Answer:

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