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pishuonlain [190]
3 years ago
10

Need help asap 15mins best

Mathematics
1 answer:
devlian [24]3 years ago
7 0

Answer:

  • find the angle KCO =57+63+x=180
  • 120+x=180
  • x=180-120
  • x=60
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2 years ago
Solve in radians help plz
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I think we can use the identity  sin x/2  = sqrt [(1 - cos x) /2]

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sqrt(3/2)(sqrt(1 - cos x) =  cos x - 1   Squaring both sides:-
1.5 ( 1 - cos x) = cos^2 x - 2 cos x + 1

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giving x = 0 , 2pi, 2pi/3,  4pi/3  ( for  0  =< x <= 2pi)

because of thw square roots some of these solutions may be extraneous so we should plug these into the original equations to see if they fit.

The last 2 results dont fit so the answer is  x = 0 , 2pi Answer
5 0
3 years ago
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