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Ulleksa [173]
3 years ago
13

You stand 20 feet from a flagpole and sight the top at a 40 degree angle of elavatuon. How tall is the pole?

Mathematics
1 answer:
LenKa [72]3 years ago
8 0
Tan 40 = h / 20  where h = height of the pole.

h = 20 tan 40 =  16.78 feet
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1 1/2 gallons to cups
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Hi, I am new to this website :) I'm currently taking an online trig class on De Moivre's theorem and I don't understand it at al
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For 1) </span>[3cos(27))+isin(27)]^5 we first apply the concept I mentioned above where it becomes

[3^5cos(27*5))+isin(27*5)] and then after simplifying we get, [243 (cos (135) + isin (135))] 

it is then further simplified to 243 (-1/ √2) + 243i (1/√2) = -243/√2 + 243/<span>√2 i
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For 2) </span>[2(cos(40))+isin(40)]^6, we apply the same steps in 1)

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