Basic trigonometry

What is the sine of an angle in a right triangle?
Opposite/Hypotenuse
Adjacent/Hypotenuse
Opposite/Adjacent
Hypotenuse/Opposite
Which trigonometric function is equal to the cosine of an angle?
Sine
Tangent
Secant
Cotangent
What is the value of sin(30°)?
0.5
0.866
1
0.707
Which trigonometric function is equal to the tangent of an angle?
Sine/Cosine
Cosine/Sine
Secant/Cosecant
Cotangent
What is the value of cos(45°)?
0.707
0.5
1
0.866
This can be determined using the values of common angles in trigonometry. 6. Which trigonometric function is equal to the cosecant of an angle?
1/Sine
Sine/Cosine
Cosine/Sine
Secant/Cosecant
What is the value of tan(60°)?
V3
0.866
1
0.707
This can be determined using the values of common angles in trigonometry. 8. Which trigonometric function is equal to the secant of an angle?
1/Cosine
Sine/Cosine
Cosine/Sine
Secant/Cosecant
What is the value of cot(30°)?
V3/3
0.5
1
0.866
This can be determined using the values of common angles in trigonometry. 10. Which trigonometric function is equal to the cotangent of an angle?
1/Tangent
Sine/Cosine
Cosine/Sine
Secant/Cosecant
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