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Kaylis [27]
2 years ago
9

PLEASE HELP WILL MARK BRAINLIEST!

Mathematics
2 answers:
pav-90 [236]2 years ago
7 0

Answer:

1, 5, 17, 53, 161

Step-by-step explanation:

Given:

  • a_1=1
  • a_n=3a_{n-1}+2

First five terms of the sequence:

a_1=1

a_2=3a_1+2=3(1)+2=5

a_3=3a_2+2=3(5)+2=17

a_4=3a_3+2=3(17)+2=53

a_5=3a_4+2=3(53)+2=161

igor_vitrenko [27]2 years ago
4 0
  • a_n=3a_n-1 +2

a_2

  • 3a_1+2
  • 3(1)+2
  • 5

a_3

  • 3a_2+2
  • 3(5)+2
  • 17

a_4

  • 3a_3+2
  • 51+2
  • 53

a_5

  • 3a_4+2
  • 3(53)+2
  • 161
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Please red the answer below

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θ2: angle between the horizontal and the first cable

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Then, you sum the equations:

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sin^2\theta+cos^2\theta=1

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T_1^2=T_2^2-2WT_2sin\theta_2+W^2\\\\sin\theta_2=\frac{T_2^2-T_1^2+W^2}{2WT_2}=\frac{(800N)^2-(1500)^2+(1372N)^2}{2(800N)(1372N)}=0.066\\\\\theta_2=sin^{-1}0.066=27.23\°

With this values you can calculate the value of the another angle, by using the equation (1):

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d: distance to the right side of the field

By using the cosine law you can fins a system of equation and then you can calculate the values of l1 and l2.

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