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saul85 [17]
3 years ago
6

Find a cubic function with the given zeros. Square root of two., - Square root of two., -2

Mathematics
1 answer:
Anni [7]3 years ago
7 0
(x-sqrt2)(x+sqrt2)(x+2) = (x^2 -2)(x+2) = x^3 +2x^2 -2x -4

hope helped 
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Tan(x+pi/2)= negative cot x
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I'm only going to alter the left hand side. The right side will stay the same the entire time

I'll use the identity tan(x) = sin(x)/cos(x) and cot(x) = cos(x)/sin(x)
I'll also use sin(x+y) = sin(x)cos(y)+cos(x)sin(y) and cos(x+y) = cos(x)cos(y)-sin(x)sin(y)

So with that in mind, this is how the steps would look:

tan(x+pi/2) = -cot x
sin(x+pi/2)/cos(x+pi/2) = -cot x
(sin(x)cos(pi/2)+cos(x)sin(pi/2))/(cos(x)cos(pi/2)-sin(x)sin(pi/2)) = -cot x
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(0+cos(x))/(-sin(x)-0) = -cot x
(cos(x))/(-sin(x)) = -cot x
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Identity is confirmed

6 0
3 years ago
Twice the length of a rectangle is three times the width. The perimeter of the rectangle is 320 cm. Find the dimensions of the r
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Answer:

106

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divided 320 by 3

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Read 2 more answers
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Answer: ¿Qué significa alcance tangente? ¡Lo busqué y no dice nada!

Step-by-step explanation:

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