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Sagot :
Answer:
B.
Step-by-step explanation:
Using SOHCAHTOA,
sin 24 = 4/10
cos 24 = x/10
tan 24 = 4/x
Answer: B.
Option B. is correct. Using cosine formula the equation cos 24° = [tex]\frac{x}{10}[/tex] is used to find value of 'x'.
What is cosine?
The ratio of the "adjacent side of a right angle triangle to the hypotenuse" is called cosine and given by the symbol 'cos'.
According to the question,
Angle of Right angle triangle is 24°
Adjacent = x
Opposite = 4
Hypotenuse = 10
In order to value of 'x' only if using cosine formula.
Formula for cosine = [tex]\frac{adjacent}{hypotenuse}[/tex]
= [tex]\frac{x}{10}[/tex]
Hence, the equation cos 24° = [tex]\frac{x}{10}[/tex] is used to find value of 'x'.
Learn more about cosine here
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