CGL 2012 Tier 2 Preparations and Results

@gudda1122 said:
ABC is a triangle . The medians CD and BE intersect each other at O. Then triangle
ODE:Triangle ABC.
a. 1:3 b. 1:4 c 1:6 d 1:12
1:12
@rahulshaitan said:
kuch aur topics ke bhi pade hai agar chahiye ho bata a me post kar dunga.
Plz Share wat all u got Bro,,,,....
@gudda1122 said:
ABC is a triangle . The medians CD and BE intersect each other at O. Then triangle
ODE:Triangle ABC.
a. 1:3 b. 1:4 c 1:6 d 1:12
1:12????
@sandeepv882 said:
explain plz
Bhai tan 15= tan (45-30)
Isme tan(A-B) ka formula laga do
x ki value nikal lo
@rahulshaitan said:
kuch aur topics ke bhi pade hai agar chahiye ho bata a me post kar dunga.
why not .... whatever possible will help fellow puys as well .... go ahead bro.. @watsnew24 was asking for Co-ordinate... I had posted the notes in previous link... if you have a readymade one can post it here ... I am still on for the herculian task of searching through pages in previous link... for last 2 hrs...
@sandeepv882 said: x=tan15, then x^2+1/x^2 ki value kya hogi
tan15 = 2-rt3...............remember thz, it may help
@mickym said:
Bhai tan 15= tan (45-30)
Isme tan(A-B) ka formula laga do
x ki value nikal lo
bhai triangle wala bata do 4x kha se aaya
@sandeepv882 said:
bhai triangle wala bata do 4x kha se aaya
wahi dekh rha hun bhai....wait
@gudda1122 said:
correct method post karna mera wala kafi bada hai
bhai just make the figure by taking ABC as an equilateral triangle for simplicity.

In triangle ODE the two sides will be 1*3 of median.

Area of triangle is = 1/2 * a^2 sin x
where a is the side of the isosceles triangle and x is the angle between them .
ODE is an isosceles triagnle with sides s= (1/3)*(rt3/2)*2 where a is the side of equilateral triangle.

now ratio = (1/2 . s^2 sin 120) / (rt 3/4)(a^2)

solve and you will get the answer
What is the remainder obtained when the sum of the squares of any thirty consecutive natural numbers is divided by 12?

(a) 0 (b) 3 (c) 11 (d) Cannot be determined
@sampras said:
why not .... whatever possible will help fellow puys as well .... go ahead bro.. @watsnew24 was asking for Co-ordinate... I had posted the notes in previous link... if you have a readymade one can post it here ... I am still on for the herculian task of searching through pages in previous link... for last 2 hrs...
bhai coordinates ke abhi nahi pade. will search my desktop agar milte hai to post kar dunga :(
@sandeepv882 said: x=tan15, then x^2+1/x^2 ki value kya hogi
14
@JS-M said:
What is the remainder obtained when the sum of the squares of any thirty consecutive natural numbers is divided by 12?
(a) 0 (b) 3 (c) 11 (d) Cannot be determined
11

@sampras 20kb photo wali problem solve ho gayi ?


@JS-M said:
What is the remainder obtained when the sum of the squares of any thirty consecutive natural numbers is divided by 12?
(a) 0 (b) 3 (c) 11 (d) Cannot be determined
11????
@JS-M said:
What is the remainder obtained when the sum of the squares of any thirty consecutive natural numbers is divided by 12?
(a) 0 (b) 3 (c) 11 (d) Cannot be determined
11

@JS-M said:
What is the remainder obtained when the sum of the squares of any thirty consecutive natural numbers is divided by 12?
(a) 0 (b) 3 (c) 11 (d) Cannot be determined
is it c.11
A wheel rotates 3.5 times in one second. What time in seconds does the wheel take to
rotate 55 radian of angle?
1. 1.5 b. 2.5 c 3.5 d 4.5
What is the area (in square units) of the quadrilateral ABCD formed by the points A(0, 0), B(6, 0), C(8, 4) and D(2, 8) in the x-y plane?

(a) 40 (b) 32 (c) 56 (d) 48
@gudda1122 said:
A wheel rotates 3.5 times in one second. What time in seconds does the wheel take to
rotate 55 radian of angle?
1. 1.5 b. 2.5 c 3.5 d 4.5
2.5 sec