Question

show that x^-1 - y^-1 /(xy)^-1 = y-x​

Answer 1

Answer:

See the attachment

Step-by-step explanation:

Answer 2

⭐$olution:

x^-1-y^-1/(xy)^-1=y-x

→1/x-1/y/1/xy=y-x

→y-x/xy/xy=y-x

→y-x/xy=y-x/xy......L.H.S=R.H.S

⭐QUESTION:

7^0÷7^-2=7^x

→1÷7^-2=7^x

→ 1÷1/7^2=7^x

→ 1×7^2=7^x

→ 7^2=7^x

→2=x

→x=2..... (Value of x is positive)

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. Hope your doubt is clear!