TS EAMCET 4-Aug-2021 Shift 2 Question Paper

Section: Mathematics

Question : 28 of 160

Marks: +1, -0

A triangle ABC has area of P square units and circumference 2S units. If h1,h2 and h3 are respectively the length of the altitudes of the triangle drawn from the vertices A, B and C then P2[

(h1h2+h2h3+h3h1)2

h12h22h32

−2] =

S2−(
ab+bc+ca
2
)
cot2A+cot2B+cot2C
2
a+b+c
4S
S2−((ab)2+(bc)2+(ca)2)

Validate

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