Trigonometric Ratios and Functions

The video tutorial explains how to determine the six trigonometric ratios for angle A in a right triangle using the mnemonic 'soh cah toa'. It covers the calculation of sine, cosine, and tangent, and their reciprocal functions: cosecant, secant, and cotangent. The tutorial emphasizes understanding the relationships between the sides of the triangle and the angle to compute these ratios.

What mnemonic is used to remember the trigonometric ratios?

• Soh toa cah

• Sine cosine tangent

• Opposite adjacent hypotenuse

• Soh cah toa

What does the 'O' in 'soh' stand for?

• Opposite

• Adjacent

• Angle

• Hypotenuse

What is the sine of angle A if the opposite side is 12 and the hypotenuse is 13?

• 13/12

• 5/12

• 5/13

• 12/13

What does the 'A' in 'cah' stand for?

• Hypotenuse

• Angle

• Adjacent

• Opposite

What is the cosine of angle A if the adjacent side is 5 and the hypotenuse is 13?

• 5/12

• 12/13

• 5/13

• 13/5

What does the 'T' in 'toa' stand for?

• Tangent

• Triangle

• Trigonometry

• Tangent ratio

What is the tangent of angle A if the opposite side is 12 and the adjacent side is 5?

• 12/5

• 5/12

• 13/5

• 5/13

What is the cosecant of angle A if the sine of A is 12/13?

• 5/13

• 13/5

• 12/13

• 13/12

What is the secant of angle A if the cosine of A is 5/13?

• 13/12

• 5/13

• 13/5

• 12/13

What is the cotangent of angle A if the tangent of A is 12/5?

• 12/5

• 5/12

• 5/13

• 13/5