Official Quant thread for CAT 2013

@amresh_maverick said:
Area bounded by the region x^2 + y^2 =4 ; |X|=2 and |y| =2 is1616-4pie84-4pieNone
16-4pi
@amresh_maverick said:
Minimum value of (3/2)sinx + 2cosx + 5-5/2-255/2None
5/2 hai kya ?
@rachit_28 said:
5/2 hai kya ?
correct

Take away : Min value of asinx + bcosx + c is given by

c -_/(a^2+b^2)
@lopagargg said:
2?
OA P = cos^2(25 degree) +cos^2(35) + cos^2(55) + cos^2(65) =2

Length of the tangent from (2,-3) to the circle 2x^2 + 2y^2 -9x + 8y + 66=0

5
5root2
24root2
10
none

@amresh_maverick said:
correctTake away : Min value of asinx + bcosx + c is given byc -_/(a^2+b^2)
2rt(a^2 +b^2)??????
@amresh_maverick said:
Length of the tangent from (2,-3) to the circle 2x^2 + 2y^2 -9x + 8y + 66=055root224root210none
NONE??????
@amresh_maverick said:
Length of the tangent from (2,-3) to the circle 2x^2 + 2y^2 -9x + 8y + 66=055root224root210none
none.?
@amresh_maverick
@amresh_maverick said:
@maddy2807 yaar pata nahi formatting ho nahi raha haiP = cos^2(25 degree) +cos^2(35) + cos^2(55) + cos^2(65)what is the value of P ?
Is that 4?
@amresh_maverick said:
Length of the tangent from (2,-3) to the circle 2x^2 + 2y^2 -9x + 8y + 66=055root224root210none
none? radius getting imaginary
@amresh_maverick said:
Length of the tangent from (2,-3) to the circle 2x^2 + 2y^2 -9x + 8y + 66=055root224root210none
ye point circle k under chala gaya kya?
@amresh_maverick said:
Length of the tangent from (2,-3) to the circle 2x^2 + 2y^2 -9x + 8y + 66=055root224root210none

sabko none kyun aa raha hai ?

5root2 ans

Length of tangent drawn from P(x1,y1) to circle s is given by root(s1)
@PSub said:
ye point circle k under chala gaya kya?
circle is not possible bhai...

@amresh_maverick said:
sabko none kyun aa raha hai ?5root2 ansLength of tangent drawn from P(x1,y1) to circle s is given by root(s1)
yaar equation me kuch sign ka prob hai kya?
@amresh_maverick said:
sabko none kyun aa raha hai ?5root2 ansLength of tangent drawn from P(x1,y1) to circle s is given by root(s1)
is eqn se to radius imaginary aa raha hai

how many 7 digit no.s can be formed having the digit 3 three times and the digit 5 four times?

@19rsb said:
2rt(a^2 +b^2)??????
@amresh_maverick said:
correctTake away : Min value of asinx + bcosx + c is given byc -_/(a^2+b^2)
I THINK DIS IS NOT D QUESTION BUT STILL I HAV GIVEN D ANSWER....
kya batayein bhai BLENDER'S PRIDE jo naa karaade......
@audiq7 said:
how many 7 digit no.s can be formed having the digit 3 three times and the digit 5 four times?
ye kya hai 7!/3!*4!
@audiq7 said:
how many 7 digit no.s can be formed having the digit 3 three times and the digit 5 four times?
35?
@mailtoankit said:
is eqn se to radius imaginary aa raha hai
@maddy2807 said:
circle is not possible bhai...
dekhta hun kya locha hai isme , sign to thik hai , for now ignore this one