simplify with sqrt - MaplePrimes

Question:simplify with sqrt

Posted: Ian Jones 101 Product: Maple

November 10 2020

Can anyone help with forcing this to simplify

assume(x>0)

assum(y>0)

simplify(sqrt(-x^2-y^2))

I am looking for this to force the sqrt to return as the imaginary number multiplied by the square root of x^2+y^2

simplify(sqrt(-x^2)) does simplify as far as bringing in the imaginary number

Many thanks

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