CGL 2012 Tier 2 Preparations and Results

Staff Selection Commission (SSC) SSC - CGL
3284
@sampras Q. In a circle if O is the centre and AB and BP are two chords ang AOB = 90 deg then ang APB =?
ans??
3285
@sampras said: Q. In a circle if O is the centre and AB and BP are two chords ang AOB = 90 deg then ang APB =?
bhai ye 45 k alawa kuch nhi ho sakta....

aur ha T & W ka q no. 8 plz aur 7 bhi
3286
@TomarNK said:
But how can we prove triangle to be isoceles with the given data??????
@sumitrewri said:
isosceles ban rahi h kya?
nahi bhai i just mentioned if its the condition....
you all are correct as ang BIC = 90 + (ang BAC)/2 ..... A=90
3287
Q. If cosecx-sinx=m and secx-cosx=n

then (m^2 * n)^2/3 + (m * n^2)^2/3 = ?
3288
@sumitrewri

bhai q k ans post se check kro if you have it
3289
@sampras said:Q. If cosecx-sinx=m and secx-cosx=n
then (m^2 * n)^2/3 + (m * n^2)^2/3 = ?
Ans is 1
3290
@sampras If cosecx-sinx=m and secx-cosx=n

then (m^2 * n)^2/3 + (m * n^2)^2/3 = ?
1 ans
3291

in a rt angled triangle ab=2.5 cos b=.5 ang abc =90 than ac

3292

Q. If ABCD is a cyclic quad and AD||BC then ang ABC = 72 deg then and BCD = ?

3293
@sumitrewri said: in a rt angled triangle ab=2.5 cos b=.5 ang abc =90 than ac
cos b = 0.5...????

angle abc = 90...?????
3294
@sumitrewri said:in a rt angled triangle ab=2.5 cos b=.5 ang abc =90 than ac
If angle abc=90.....How come cos b=1/2??
3295
@sampras said: Q. If ABCD is a cyclic quad and AD||BC then ang ABC = 72 deg then and BCD = ?


72 degree

int angle
3296
@sampras said:Q. If ABCD is a cyclic quad and AD||BC then ang ABC = 72 deg then and BCD = ?
72 degree
3297

@sumitrewri bhai aapke q bahut dara rahe hai

do q put up kiye dono me hawa nhi lag rahi
3298
@sumitrewri said: in a rt angled triangle ab=2.5 cos b=.5 ang abc =90 than ac
chk how cosb = 0.5 and ang ABC =90...
3299
@sampras 72
3300
@watsnew24 said:
cos b = 0.5...????angle abc = 90...?????
sorry yaar ang acb=90
3301
@sampras said:
chk how cosb = 0.5 and ang ABC =90...
sorry c is 90
3302
@sampras said: Q. If ABCD is a cyclic quad and AD||BC then ang ABC = 72 deg then and BCD = ?
72????
3303
@sumitrewri said:
ans ... 5/rt3

use 1/2 absinC = 1/2 ac sinB