Find the exact value of : cos(2 arctan(4/3))
1 answer:
Cos(2 arctan(4/3)) = cos(2 arccos(3/5)) = cos^2(arccos(3/5)) - sin^2(arccos(3/5)) = cos^2(arccos(3/5)) - sin^2(arcsin(4/5)) = (3/5)^2 - (4/5)^2 = 9/25 - 16/25 = -7/25.
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Answer:
$950
Step-by-step explanation:
x+70=1020 so subtract 70 from both sides
x=950 cost of dryer
1020-950=70 washer is 70 more than dryer
Nvm
Step-by-step explanation:
Ah ok The property is
"The Addition Property of Equality"
I believe that “b” would equal 6
Unit rate is the thing that describes y and x
