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Over [174]
3 years ago
5

Simplify 8i^6+6i^5-5i^3-3i^2-7i-9 A) -14+4i B) -4+4i C) -10i D) -14-18i

Mathematics
2 answers:
kipiarov [429]3 years ago
7 0
The answer is A) -14 + 4i. God bless!
poizon [28]3 years ago
7 0

Answer:

The simplified form of complex expression is -14+4i

A is correct.

Step-by-step explanation:

Given: 8i^6+6i^5-5i^3-3i^2-7i-9

As we know, i^2=-1

i^6=-1

i^5=i

Put the value and simplify i

\Rightarrow 8(-1)+6(i)-5(-i)-3(-1)-7i-9

\Rightarrow -8+6i+5i+3-7i-93

Combine the like term and simplify it

\Rightarrow (-8+3-9)+(6i+5i-7i)

\Rightarrow -14+4i

Hence, The simplified form of complex expression is -14+4i

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