discussion topic: Algebra

The answer for
2^n-j problem is 12
bcoz
given that the total wrong answers is 4095
if we take j=1
then
n=12

hi friends try dis question i tried a lot but i didn't get
what is the digit in units place?? if
x^2567 where 15>x>5

please ask the question completely then only it will be better u given only some part of question

rajnarayanan
hello sir
my name is raj
i have a doubt in time and distance topic
the problem is

"hero and hercules start simultaneously from P towards the same destination Q.when the distance between hero and hercules was 30 KM champ starts towards Q .the distance travelled by champ to overtake hercules is twice the distance travelled to overtake hero.the ratio of speeds of hercules and hero is 3:2.


1. what is the ratio of the speed of champ to hero?
a.4:1
b.3:1
c.2:1
d.none of these

2. what is the distance between hero and hercules when champ was equidistant from hero and hercules?

a.45KM
b.48KM
c.51.42KM
d.54.57KM

5

hi
 

a2-2009b-2b2 equals to 0 thn find a plus b

pls ans my quest

a2 - 2009b – 2b2  = 0
then find a+b

anybody can ans my question ?

hiiiiiiii every body

we have 19, 1, 7, 3 also

we have 19, 1, 7, 3 also

there are ten sloutions u have missed one pair 19,1,7,3 and some are repeated   

hhhhiiii.

32#4(mod7)
32^4#4(mod7)
32^8#(mod7)
32^32#4(mod7)
.
.
.
.
32^32^32#2(mod7); #-stands for congorence to ;remainder is :2

hii krishna please explain how many zero's in 2^189 - 2^89??
what the answer??

acc to me ans is 21

sorry first reply is wrong ans is 1 only