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Please help right now
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Please help right now

Please help right now-example-1
User Vardan Agarwal
by
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1 Answer

4 votes

Answer:

4sqrt(2) + 1

Explanation:

Well you know that cos 0 is 1

this means that a+b = 9

cos 60 is 1/2

this means 1/2 a + b = 5

a = 8

b = 1

now plug in for x = 45

cos 45 = sqrt(2)/2

User Pwnall
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5.2k points
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