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olchik [2.2K]
2 years ago
6

Cos Y=? 5/13 5/12 12/13

Mathematics
1 answer:
swat322 years ago
8 0

Answer:

Cos Y = 12/13

Step-by-step explanation:

Recall, SOHCAHTOA.

Cos Y = Adjacent/Hypotenuse

Reference angle = Y

Adjacent = 12

Hypotenuse = 13

Therefore:

Cos Y = 12/13

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Can you guys help we with this question. ​​​​​​
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Answer:

40

Step-by-step explanation:

(2x+1/(2x))^5 *(2x -1/(2x))^5

= ((2x)^2 -1/(2x)^2)^5 (a+b)*(a-b) =a2-b2

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now

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we have

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5*4/(2*1)*4

40

4 0
2 years ago
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