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fredd [130]
3 years ago
14

Five and one half less than 3 times a number

Mathematics
1 answer:
Rama09 [41]3 years ago
5 0

3x - 5 1/2      is the expression


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Which statements are true about the trigonometric ratios of this triangle​
rosijanka [135]

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Options (1), (2), (3) and (4)

Step-by-step explanation:

By applying the sine and cosine rules in the given triangle,

sinθ = \frac{\text{Opposite side}}{\text{Hypotenuse}}

cosθ = \frac{\text{Adjacent side}}{\text{Hypotenuse}}

cos(30°) = \frac{AC}{AB}

              = \frac{11\sqrt{3} }{22}

              = \frac{\sqrt{3}}{2}

sin(30°) = \frac{BC}{AB}

             = \frac{11}{22}

             = \frac{1}{2}

cos(60°) = \frac{BC}{AB}

              = \frac{11}{22}

              = \frac{1}{2}

sin(60°) = = \frac{AC}{AB}

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              = \frac{\sqrt{3}}{2}

Options (1), (2), (3) and (4) are the correct options.

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2 years ago
Kuisssss<br><br><br>hi how are you?<br><br><img src="https://tex.z-dn.net/?f=%20%5Csf%20%7B3%7D%5E%7B2%7D%20%20%5Cdiv%209%20%3D%
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Mark brainliest please
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