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The range of  \mathrm{ y=cos\ x } is

Option: 1

\mathrm{\left ( -\infty ,0 \right )}
 


Option: 2

[-1,1]
 


Option: 3

\mathrm{ \left ( 0,0 \right )}

 


Option: 4

\mathrm{ \left ( 1,-1 \right )}


Answers (1)

best_answer

Option (b)  [-1,1]

The function is defined for all real numbers, and the domain of the trigonometric functions \mathrm{y=cos\ x} will include all of the real numbers. 

The range of  \mathrm{y=cos\ x \: is\: -1\: to\: 1.}

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SANGALDEEP SINGH

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