Answer:
Standard form of a quadratic equation is;
ax^2+bx+c=0
According to the above equations, all of them are in standard form.
Step-by-step explanation:
Not sure what you mean by dot product, maybe explain and I can help better but the two make an equation of y= 4/1 x + -27, that is the equation of the line.
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Cosine and secant functions are reciprocal, which means

So, if

then

I hope this helps. =)
Tags: <em>cosine secant cos sec relation reciprocal trig trigonometry</em>