Question

if log 2 ,log(2^x-1) and log(2^x+3 ) are in AP then x is equal to??

Answer 1

whats AP ?

Answer 2

arithmetic progression

Answer 3

so this is different from arithmetic sequence ? :D

Answer 4

@FoolForMath

Answer 5

http://www.wolframalpha.com/input/?i=solve+%282%5Ex-1%29%5E2+%3D+2%282%5Ex%2B3%29

Answer 6

Okay, if a, b, c are in A.P what can we say about them?

Answer 7

a+c/2=b

Answer 8

a+c=2b

Answer 9

log 5 / log 2

Answer 10

is taht equal to 5/2?

Answer 11

Okay now apply this here, what did you get?

Answer 12

http://www.wolframalpha.com/input/?i=log+5+%2F+log+2+%3D+log+base+2+5