I am getting problem in solving this question .please!! solve this.
I am getting problem in solving this question .please!! solve this.
Aniket keshari , 6 Years ago
Grade 12th pass
Algebra> I am getting problem in solving this ques...
2 AnswersAditya Gupta
2^x*5^y= 1 and 5^(x+1)= 2^(1 – y)
we take log base 10 both sides for both eqns and use properties of logarithms
log(2^x*5^y)= log(1)= 0 or log2^x + log5^y= 0 or xlog2 + ylog5= 0....(1)
and log(5^(x+1))= log(2^(1 – y)) or (x+1)log5= (1 – y)log2......(2)
solving (1) and (2) for x and y, we get
y= log2/(log2+log5)= log2/log(2*5)= log2/log10= log2/1= log2
and x= – log5/(log2+log5)= – log5/log10= – log5/1= log(1/5)
so option C is correct
kindly approve :)
Vikas TU
Dear student
Here you need to go by alternate method , You need to check by option ,
Log 2 = 0.301
Log 5 = 0.69
Put the options a, b , c , d
in the question
2^x * 5^y = 1
5^(x+1) * 2^y = 1
Option c is correct ans.
Here you need to go by alternate method , You need to check by option ,
Log 2 = 0.301
Log 5 = 0.69
Put the options a, b , c , d
in the question
2^x * 5^y = 1
5^(x+1) * 2^y = 1
Option c is correct ans.
LIVE ONLINE CLASSES
Prepraring for the competition made easy just by live online class.
Full Live Access
Study Material
Live Doubts Solving
Daily Class Assignments
Other Related Questions on algebra
Can we divide two vectors? If this is possible then how?
Can we divide two vectors? If this is possible then how?
algebra
1 Answer Available
Last Activity: 2 Years ago
How do you write “the product of 18 and q” as an algebraic expression?
How do you write “the product of 18 and q” as an algebraic expression?
algebra
1 Answer Available
Last Activity: 2 Years ago
दहावीच्या आय सी एस इ विद्यार्थ्यांनी पुढे काय करायला पाहिजे
दहावीच्या आय सी एस इ विद्यार्थ्यांनी पुढे काय करायला पाहिजे
algebra
1 Answer Available
Last Activity: 3 Years ago