Can someone help with the interpretation pls ?

Question

arr= ([ 4 , 1 ] , [ 3 , 6 ] )
fa= lambda x, y = 0 : x+y

for n in arr :
print(fa(*n))

Answer 1

*n is variable number of arguments

https://www.sololearn.com/learn/JUMP_LINK__&&__Python__&&__JUMP_LINK/2484/?ref=app

lambda is one-line function

https://www.sololearn.com/learn/Python/2460/?ref=app

The code snippet adds 4 and 1
and then add 3 and 6

for n in arr,
so n is [4, 1]
and then n is [6, 1]

fa(*[4,1]) is same as fa(4, 1)

lambda x, y : x +y
is same as
def fa(x, y) :
return x + y

so fa(4, 1) is 4 + 1