SOLUTION: What is the {{{ cos(t) }}} if {{{ t }}} corresponds to the point (-2, 0)? A.) {{{ 0 }}} B.) {{{ 1 }}} C.) {{{ -1 }}} D.) {{{ undefined }}}

Algebra ->  Test -> SOLUTION: What is the {{{ cos(t) }}} if {{{ t }}} corresponds to the point (-2, 0)? A.) {{{ 0 }}} B.) {{{ 1 }}} C.) {{{ -1 }}} D.) {{{ undefined }}}       Log On


   

Question 1058496: What is the +cos%28t%29+ if +t+ corresponds to the point (-2, 0)?
A.) +0+
B.) +1+
C.) +-1+
D.) +undefined+
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
What is the +cos%28t%29+ if +t+ corresponds to the point (-2, 0)?
A.) +0+
B.) +1+
C.) +-1+
D.) +undefined+
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Not clear, but if you mean that the point (-2,0) is on the line thru the Origin, then the angle is 180 degs.
cos(180) = -1