maths core 2

triangles

a=0.5xaxbxsinC

sine rule in formula book

cosine rule in formula book

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logs

logaN=X

N=a^x

logAB=logA+logB

log A divided by B = logA-logB

logX^n=nlogx

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trapezium rule

Area=H diveded by 2 [y0+y4+2(y1+y2+y3)]

y0= 1st

y4= last

y1+y2+y3= others

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Radians

s=r x pheta

A= 0.5 x r^2 x pheta

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trig

TanX= sinX divided by cosX

sin^2X + cos^2X=1

sin^2x= 1-cos^2x

cos^2x= 1-sin^2x

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bionomial

(1+x)^n= 1+nx+ (n-1)n divided by 2! times by x^2 + n(n-1)(n-2) diveded by 3! times by x^3

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