Q3) Write a procedure, isTriangle, to determine if any three given
numbers represent the lengths of the sides of a triangle.
The procedure should be able to deal with any input.
I have done the following and get an error
isTriangle:=proc(a,b,c::nonnegative and numeric)
if (a^2+b^2)=c^2 then print (a,b,c "represent the sides of a triangle")
Error, unexpected string
when stated 'unexpected string', the cursor is moved to the
word triangle between the l and e
is there something wrong with my procedure?