Question

3 ^ (x + y) = 243 and 243 ^ (x - y) = 3, find value of x and y​

Answer 1

Answer:

X=26/10 and Y=24/10

Step-by-step explanation:

Here 3^(x+y)= 3^5 we know [3^5=243]

and 243^(x-y)= 3^5*1/5 so 3^5=243

then 243^(x-y)=243^1/5

On compairing above equations we get

X+y=5 and X-Y=1/5

on solving them we get

X=26/10 and 24/10

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