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Otrada [13]
3 years ago
9

Which statements are true about the trigonometric ratios of this triangle​

Mathematics
1 answer:
rosijanka [135]3 years ago
3 0

Answer:

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}

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

              = \frac{\sqrt{3}}{2}

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

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Step-by-step explanation:

Using the equation:

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Find the fifth term of a sequence whose first term is 8 and common ratio is 3/2
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Answer:

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Step-by-step explanation:

Fifth term: a5=?

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with n=5

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Replacing the known values:

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Simplifying: Dividing the numerator and denominator by 8:

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