The expression cos(314) is positive and its value is 0.694 and this can be determined by using the trigonometric properties.
Given :
Expression -- [tex]\rm cos\; 314^\circ[/tex]
The following steps can be used to determine the given expression is positive, negative, or zero:
Step 1 - Write the given expression.
[tex]=\rm cos\; 314^\circ[/tex]
Step 2 - Rewrite the above expression.
[tex]=\rm cos\; (360^\circ - 46^\circ)[/tex]
Step 3 - Simplify the above expression.
[tex]=\rm cos\; (46^\circ)[/tex]
= 0.694
So, the expression cos(314) is positive and its value is 0.694.
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https://brainly.com/question/21286835
