Application of Trigonometric

Which trigonometric ratio should you use?

• Tangent Ratio

• Sine Ratio

• Cosine Ratio

• Any ratio

What is the correct equation?

• sin 40 = w/28

• cos 40 = w/28

• tan 40 = w/28

• sin 40 = 28/w

10 cm

10√3 cm

5 cm

20 cm

• 10 cm

• 10√3 cm

• 5 cm

• 20 cm

Find side AB?

• 20 m

• 5 m

• 11.54 m

• 8.66 m

• Sine

• Cosine

• Tangent

• Cotangent

• Cocosine

• 25 metres

• 50 metres

• 28.87 metres

• 43.3 metres

For y=7sin(6(x-8))+9, What is the value of A, B , C, and D?

• 7

• D, midline

• 9

• C, phase shift

• 6

• A, amplitude

• 8

• B, helps calculate period

• 20 metres

• 40 metres

• 28.28 metres

• 14.14 metres

F(x) = Asin[B(x-C)] + D is the standard form. A is the Amplitude B helps you find the period, B=2pi/period C is the phase shift D is the vertical shift Then f(x) = 2Sin(3x + 1) + 4

• 1

• vertical shift

• 4

• phase shift

• 2

• amplitude

• 3

• helps calculate period

When the angle of elevation of the sun is 78 degrees, an statue casts a shadow that is 6m long. What trig function would you use to determine how the top of the statue is from the end of its shadow?

• Sine

• Cosine

• Tangent

• Cotangent

• Cocosine