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Subject: Maths, asked on 30/4/17

Pls answer q16 and q17

Subject: Maths, asked on 26/12/16

Prove Napier's Analogies.

Subject: Maths, asked on 22/11/16

if G is the centroid of triangle ABC and a,b,c are side lenghts then prove that a2+b2c2=3(OA2+OB2+OC2)- 9 OG2 where O is any point in plane of triangle ABC....kindly give proof using vector algebra rather than plane geometry (i know all concepts related to vector analysis and vector algebra)

Subject: Maths, asked on 16/11/16

if G is the centroid of triangle ABC then show that cot GAB+ cot GBC +cot GCA =3 cot omega =cot ABG+cot cot BCG +cot CAG where omega is the brocard angle and cot omega = cot A + cot B +cot C

Subject: Maths, asked on 16/11/16

if ABC be a triangle having a right angle at c and AE,BD are drawn perpendicularly to AB meet BC,AC produced in E,D respectively then prove that tan CED =tan 3BAC

Subject: Maths, asked on 13/11/16

find the area of triangle ABC whose vertices are A(-3, -5),B(5,2),C( -9,-3)

Subject: Maths, asked on 10/11/16

AD is the median of triangle ABC and angle BAD = theta ,,and angle CAD=phi ,,prove that cot theta+cot c=cot b+ cot phi

Subject: Maths, asked on 10/11/16

in triangle abc ,AD is an altitude and H is the orthocenter . prove that AH: HD= (tan B+ tan C) : Tan A
 

Subject: Maths, asked on 9/11/16

let o be a point inside a triangle ABC such that angle OAC=angle OCB= angle OBA= alpha .then prove that

1)cota +cot b + cot c=cot alpha
2) cosec2a+cosec2b+cosec2c= cosec2alpha

Subject: Maths, asked on 6/11/16

in triangle ABC , if a2tanB=b2  tanA, then prove that the triangle is either right triangle or isosceles.

Subject: Maths, asked on 21/9/16

in triangle ABC  if D,E,F are midpoints of sides BC,AC,AB respectively .then prove that the centroid of triangle DEF  and triangle  ABC is same ...

Subject: Maths, asked on 20/9/16

in triangle ABC ,if D,E,F are the midpoints of sides BC,AC,AB respectively,,then prove that the centroid of the triangle DEF is same as the centroid of the triangle ABC (without using coordinate geometry)

Subject: Maths, asked on 1/9/20

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Subject: Maths, asked on 1/9/20

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Subject: Maths, asked on 12/8/20

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