Pure Flashcards
What is the Log Law of Multiplication?
It states that when adding two or more logarithms with the same base, you can multiply the outputs(brackets).
What is the Log Law of Division?
It states that when subtracting two or more logs with the same base, you can divide the outputs(brackets).
What is the cos formula for trigonometry?
a²= b² + c² - 2bc CosA
What is the sin rule formula for trigonometry?
Sin A Sin B Sin C
÷ = ÷ = ÷
a b c
What is the quadratic formula?
x= (-b±√ b²-4ac) / 2a
What equation gives abc for the quadratic formula?
ax² + bx + c = 0
What is it called when adding two or more logs with the same base?
Log law of Multiplication
What is it called when subtracting two or more logs with the same base?
Log law of Divison
Which values for the discriminant tell us the number of roots on a parabola?
<0 = 2 roots
0 = 1 root
>0 = 0 roots
What is the equation to work out the vertex on a parabola?
-b
_______
2a
What is the equation for the volume of a cyclinder?
V= π r² h
What is the equation for the surface area of a cyclinder?
SA= 2π r² + 2π r h
What is the index power law?
When there is a log with an index, you can move the power to the front of the log (as a coefficient) and the base to the end.
What is the equation of a circle?
(x-a)² +(y-b)² = r² (a,b)
What is the formula for the area of a circle?
Circle= πr²
