Question

What is the digit in 10s place in

Answer 1

\[\Huge 7^{7^{7^{7^{7..1000 Times}}}}\]

Answer 2

7? lol

Answer 3

?

Answer 4

7, because everything is 77777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777...

Answer 5

seriously? -.-

Answer 6

ya lol

Answer 7

you're wrong with the answer anyway

Answer 8

lol 8 then?

Answer 9

nowhere near

Answer 10

its 7 because it says digit not the entire number

Answer 11

why are you forcing me to say that yes you are right?

Answer 12

because i am right

Answer 13

ok

Answer 14

@hartnn bhaiiiiiiiiiiiiii

Answer 15

bhai ,relax.
aise maths kabhi nai kiya maine ....
what i can think of just generalizing....
but thats tedious...idk any definite method for it...

Answer 16

if @mukushla has time, he can help...

Answer 17

lol i think it's an exponent that you repeat 1000 times.

Answer 18

There is 1000 7s? Juat making sure.

Answer 19

If that's the case then it's 7 :I

Answer 20

i have some idea
7^2=49
7^3=343
7^4=2401
That means always odd..hence 7^7^7..is smt odd
therefore 7^odd
49=4k+1
343=4k+3
2401=4k+1
hence 7^4k+3 or 7^4k+1
its 1000 so
7^4k+3
\[\large 7^{4k}7^3\]
=> 343 x (7^4)^k
\[\large 343 (...01)^k\]
now 010101 will remain 01 only so we only worry about 343 hence ans=4

Answer 21

I can solve it using brute force by programming...

Answer 22

I will check it. are you sure it is correct?

Answer 23

yep ans is 4

Answer 24

I didn't understand most of that

Answer 25

@hartnn ??