In given solution at the last step of we divide these both so it should come 1 how it came -1.
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In given solution at the last step of we divide these both so it should come 1 how it came -1.
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Answer:
The Answer is all correct.
The First Thing was that..
On Numerator We Multiply it by -1 and -1
So there will be null effect
let's See how
Afterwards,
In Numerator You will Multiply -1 with b² + a²
So the Results will be
Then Arrange -b² and -a² according to Denominator
Hence -a² - b² will be Divided and tye results will be