高中数学公式(理科必备)(The high school mathematics formula (.pdfVIP

高中数学公式(理科必备)（Thehighschoolmathematicsformula

(EssentialScience)）

Themathematicalformulaofmathematicalformula,isthenumber

ofdifferentthingsinnaturebetweenrepresentationorother

orunequalrelationship,itexactlyreflectstherelationship

betweentheinternalandexternalthings,wearrivedatanother

thingfromathingformakeusbetterunderstandtheconnotation

andessenceofthings.

Assomebasicformula

Y=ax*BXparabola:+C

YisequaltothesquareofaxplusBXplusC

Whena0openingup

A0whenopeningdown

WhenC=0aftertheoriginofparabola

B=0parabolicsymmetryaxisistheYaxis

Therearevertextypey=(x+h)*a+k

Yisequaltoatimesthesquareof+k(x+h)

-histhevertexcoordinatesoftheX

KisthevertexcoordinatesoftheY

Generallyusedtofindthemaximumvalueandminimumvalue

Thestandardparabolicequation:y^2=2px

ItissaidthatthefocusoftheparabolainXpositivehalf

axis,thefocusofcoordinates(p/2,0)alignmentequationis

x=-p/2

Asthefocusoftheparabolainanyhalfshaft,sothereare

standardy^2=2pxy^2=-2pxx^2=2pyx^2=-2pyequation

Round:Volume=4/3(PI)(r^3)

Area=(PI)(r^2)

Theperimeterofthe=2(PI)r

Thestandardequationofcircular(x-a)2+(y-b)2=r2(Note:

A,b)isthecentercoordinates

X2+y2+Dx+Ey+F=0note:D2+E2-4F0generalequationofthe

circle

(a)calculationformulaofellipsecircumference

Ovalcircumferenceformula:L=2-b+4(a-b)

Ovalcircumferencetheorem:equaltotheperimeterofan

ellipseellipseshortaxlelengthradiuscircumference(2-b)

andthefourtimesoftheellipticalsemimajoraxis(a)andthe

shortaxlelengthdifference(B).

(two)thecalculationformulaofellipsearea

Ellipseareaformula:S=PIab

Ellipseareatheorem:ellipseareaequaltoPI(PI)bythe

ellipticalsemimajora