Dot Product
Given u= <2, -2>, v = <5, 8> Find u*v
-6
If a = 21.5, b = 13, and C = 39 degrees, find c to the nearest tenth using the Law of Cosines.
14.1 units
What is missing from this equation? a^2+c^2-2ac cos B.
b^2
What does it mean if the dot product of two vectors is equal to 0?
The vectors are orthogonal (perpendicular)
What is her favorite math class?
AMSAT Pre-Calc H
Given u= <2, -2>, v = <5, 8> Find u*(2v)
-12
If A = 52 degrees, b = 54 and c = 49, find a to the nearest tenth using the Law of Cosines.
45.3 units
How many cases are there for proving the Law of Cosines?
3
What do you get if you dot product a vector with itself?
The Magnitude squared
What is her favorite animal/mythical creature?
Unicorn
Given u= <2, -2>, v = <5, 8> Find u^2
8
If a = 3, b = 7 and c = 5, find B to the nearest degree using the Law of Cosines.
120 degree
What section did we learn about Law of Cosines?
5.6
<1,1>*<2,3>
5
What is the name of Mrs. Gentile’s son?
Nick
Given u= <2, -2>, v = <5, 8> Find u*v^2
<178,-178>
If a = 5, b = 6, and c = 8, find A to the nearest degree using the Law of Cosines.
39 degree
What is the missing information? c^2=-2ab cos C.
a^2+b^2
<-1,4>*<2,-3>
-14
What is her first name?
Carisa
Given u= <2, -2>, v = <5, 8> Find 3u*v^2
<534,-534>
If a = 12.6, b = 8.5, and c = 6.3, find C to the nearest degree using the Law of Cosines.
26.7 degree
Which case would be used to find the measurement of angle A?
a^2=b^2+c^2-2bc cos A.
<43,0>*<0,19>
0
What colleges did she go to?
College of New Rochelle (CNR), Lehman College