Question

please tell me the answer for this faster guy's !!!!!!!!!​

Answer 1

Answer:

Step-by-step explanation:

First

Given that x=(5/7)^-5*(7/5)^-7

so,

first of all let the value (5/7)^-5 be as it is

and the value (7/5)^-7 is

(5/7)^7

and now

from the question

(5/7)^-5*(5/7)^7= it is in the form of

a^m*a^n is a^m+n so,

it will be becoming as

(5/7)^-5+7

it is (5/7)^2

it is 25/49

and now the value of x is 25/49

and the value of 2x+1

2x+1 is 2(25/49)+1

is equal to 50/49+1

after by the lcm is equal to the 50+49/49

99/49

it is the answer

HOPE IT HELPED U:D

Answer 2

Answer

2.02040816327

Step-by-step explanation:

2*(5/7)^-5*(7/5)^-7+1

2*(5/7 5/7 5/7 5/7 5/7)(7/5 7/5 7/5 7/5 7/5 7/5 7/5)+1=

2*5/7*5/7+1

2*25/49+1

99/49

99/49 Answer