On a unit circle, what is cos Θ for coordinates
%20%5Cfrac%7B%5Csqrt%7B2%7D%20%7D%7B2%7D%29" id="TexFormula1" title="(\frac{\sqrt{2} }{2} , \frac{\sqrt{2} }{2})" alt="(\frac{\sqrt{2} }{2} , \frac{\sqrt{2} }{2})" align="absmiddle" class="latex-formula">?
A) 0
B) 1
C)
D)
A) 0
B) 1
C)
D)
1 answer:
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Solution:
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2. Apply radical rule : ,
,
=