Exam (elaborations)
Mathnasium Review.
- Course
- Institution
Exam of 6 pages for the course SRU ELEC340 F at SRU ELEC340 F (Mathnasium Review.)
[Show more]
Seller
Follow
lydiaomutho
Content preview
Mathnasium ReviewA triangle formed by three points on a circle with the hypotenuse being the diameter will
always be a... - ANS-right triangle
A u B vs A n B - ANS-A u B includes everything from both sets
A n B only includes overlap of the two
AOS of a parabola - ANS--b/2a
area of a circle - ANS-πr²
area of a polygon - ANS-A=½aP, where a is the apothem and P is the perimeter.
area of a trapezoid - ANS-1/2(b1+b2)h
Area of a triangle given SAS - ANS-A=1/2bc(sinA)
area of a triangle given SSS - ANS-s= (a+b+c)/2
A= Root[s(s-a)(s-b)(s-c)]
Arithmatic formula - ANS-an=a1+(n-1)d
Circumference of a circle - ANS-2πr
Complementary angles - ANS-add to 90 degrees
Difference of cubes - ANS-a³ - b³ = (a - b)(a² + ab + b²)
Directly proportional - ANS-both go the same way
domain - ANS-x values
Equation for compound interest - ANS-A=P(1+r/n)^nt
equation of a circle - ANS-(x-h)²+(y-k)²=r²
equation of an ellipse - ANS-(x-h)^2/a^2 + (y-k)^2/b^2 = 1
, Even vs odd symmetrical functions - ANS-even: symmetric over the y axis
odd: symmetric over the line y=x
Faces + vertices - ANS-= edges +2
geometric formula - ANS-an=a1(r)^n-1
geometric sum - ANS-(a1(1-r^n))/(1-r)
how and what combinations - ANS-does not care about order
n!/r!(n-r)!
n=number of objects
r=number of desired objects
How and what permutations - ANS-cares about order
n!/(n-r)!
n=number of objects
r=number of desired objects
how do you add matrices? - ANS-Simply add the corresponding places (if they are
different sizes then it is undefined)
How do you add vectors together? - ANS-<x,y>+<a,b>=<x+a,y+b>
how do you calculate standard deviation? - ANS-calculate mean, find difference
between mean and each number, square each difference, find mean of new set of
numbers, square root that mean
How do you draw a sign diagram? - ANS-Mark all x-intercepts, and mark in each
section if it is in the positive or negative section. Dotted line for asymptotes
How do you find a single term in a binomial expansion - ANS-(nCr)(a)^n-r (b)^r
r = the term number minus 1
How do you find an inverse function? - ANS-switch x and y and solve for y
How do you find interquartile range? - ANS-median, then median of the two sides.
Subtract Q1 from Q3
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller lydiaomutho. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $7.99. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
62890 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now