These notes provide a handwritten notes in a cheat sheet format which would help aspirants gain an edge over their competitors. These notes have been drafted by Jee 2020 topper
Shaghh ines
Dstonce fomulae d=lc-X) +(-y)
Sechon foxmulae
a) Fox intexnal division , ) = mxtnx ,0y
mt n Dy
bfor extexnal dinsion Dyny
mn
Hasmonic conjugate i- EF PPdosde AB iaternally in the
Sane. xaho a o diydes AB exkexnally
2 Le AP, AB & AQ
AB AP AQ
Mid-pt formulae A=lxisfi)
be Jhe midpt
then
2
CEN TERS CONEC TED cwTH TRIANGLE
Centxoid fomulae -
A
3 3
At centrzicla medin meet
he
2) Incenhe foube i- The paint at ahich bisector
meet
, a=lBcl b=lcA)clAB
arb c
tbtc
dhjude
at wch
ORTHOCENTRF- The oint ot ORs mee
ton A t tonBt tanC
tan At clnBt ton
The foomed is called an osthic Hiange
CIRCUMCENTREpt of concuTence of L bisectoxs
0=Xsin2A t Xasin 2Bt Xasin2c, isin2A t y.sin28 tyssin2c
+ sin bc
Stn 2A t Sin 2B t Sin 2c sin 2A t siH2B
kG diyides oH in he ato l:2 Le oqGH =l:2
colineax
k dn an sosceles tiange G, I,H R0 he on the same
Shfng of axis
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