2 years ago

Need help with math please

1 answer:

6 0

Since those blue lines are perpenticular bisectors, that means they bisect at the midpoint of the line they bisect. That means the the line they bisect gets divided into equal parts. So,

BG must equal AG = 9, because DG bisects AB at the midpoint of D.

AD must equal DB = 6, because DG bisects AB at the midpoint of D.
So, AB =6+6 =12

BG=9
AB=12

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KengaRu [80]

We have the following expression

$4\cdot\text{cis(}\frac{\pi}{4})\cdot5\text{cis(}\frac{\pi}{6})$

This is equivalent to

$4\cdot\text{cis(}\frac{\pi}{4})\cdot5\text{cis(}\frac{\pi}{6})=(4\times5)cis(\frac{\pi}{4}+\frac{\pi}{6})$

Since

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we have that

$4\cdot\text{cis(}\frac{\pi}{4})\cdot5\text{cis(}\frac{\pi}{6})=20cis(\frac{5\pi}{12})$

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3 years ago

Someone plz help me :(

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Hey there ;-)

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By Benjemin ☺️

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