This week was really frustrating because we are getting back into trig after having some pretty easy lessons lately. We covered sections 12-1 and 12-2.
12-1 was pretty easy because all there really was for us to do was connect the vectors, add on to them, or flip them around. A vector is a line that represents motion. The line has a magnitude and a direction, which are the points that are given. ( x is the head and y is the tail ) also, when | | is given, it is not asking for an absolute value like usual. | | that symbol means find the magnitude.
As for the vectors, there are 3 things that it usually asks:
For example: Find 4t
That is telling you to take the vector that it gives you and draw it four times connecting in a straight line.
If it asks you to find –t, you draw the vector facing the opposite direction.
Lastly, if it wants you to find t + q, you connect the two vectors together, usually creating an angle.
I think we should continue to go to the library sometimes to do aleks. I find its really helpful and not as boring as doing work out of the book. Sorry this was such a short blog.
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