Evaluate (If Possible) the Sine, Cosine, and Tangent of the Real

question 366

Multiple Choice

Evaluate (if possible) the sine, cosine, and tangent of the real number. $t = \frac { 3 \pi } { 2 }$

• A) \(t = \frac { 3 \pi } { 2 }\) corresponds to the point \(( x , y ) = ( - 1,0 )\) . \(\begin{array} { l }
• \sin \left( \frac { 3 \pi } { 2 } \right) = 0 \\
• \cos \left( \frac { 3 \pi } { 2 } \right) = - 1 \\
• \tan \left( \frac { 3 \pi } { 2 } \right) = 0
• \end{array}\)
• B) \(t = \frac { 3 \pi } { 2 }\) corresponds to the point \(( x , y ) = ( 0 , - 1 )\) . \[\begin{array} { l }
• \sin \left( \frac { 3 \pi } { 2 } \right) = - 1 \\
• \cos \left( \frac { 3 \pi } { 2 } \right) = 0
• \end{array}\]
• \(\tan \left( \frac { 3 \pi } { 2 } \right)\) is undefined.
• C) \(t = \frac { 3 \pi } { 2 }\) corresponds to the point \(( x , y ) = ( 0,0 )\) . \(\begin{array} { l }
• \sin \left( \frac { 3 \pi } { 2 } \right) = 0 \\
• \cos \left( \frac { 3 \pi } { 2 } \right) = 0 \\
• \tan \left( \frac { 3 \pi } { 2 } \right) = 0
• \end{array}\)
• D) \(t = \frac { 3 \pi } { 2 }\) corresponds to the point \(( x , y ) = ( - 1,0 )\) . \(\begin{array} { l }
• \sin \left( \frac { 3 \pi } { 2 } \right) = - 1 \\
• \cos \left( \frac { 3 \pi } { 2 } \right) = 0 \\
• \tan \left( \frac { 3 \pi } { 2 } \right) = 0
• \end{array}\)
• E)Not possible

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Definitions:

Sensory Input

The stimulation that is received by the sensory receptors, leading to sensations and perceptions, originating from the external or internal environment.

Psychophysicist

A scientist who studies psychophysics, a discipline focusing on the relationship between physical stimuli and the sensory responses these stimuli evoke in the human mind.

Difference Threshold

The minimal difference in intensity required between two sources of energy so that they will be perceived as being different.

Ernst Weber

A pioneering psychologist known for his work in the area of the sense of touch and the Weber-Fechner law regarding the perception of changes in a stimulus.