Solution :
We have to prove that 
(De-Morgan's law)
Let 
then 
and 
and so 
and 
.
Thus, 
and so 
Hence, 
.........(1)
Now we will show that 
Let ⇒
Thus x is present neither in the set A nor in the set B, so by definition of the union of the sets, by definition of the complement.
and 
Therefore, 
and we have .............(2)
From (1) and (2),
Hence proved.
The answer is 2,117 im pretty sure.
It will take 7 hours. Simply divide 175 by 25= 7
Answer:
Step-by-step explanation:
the other 3 are perfect squares and have rational answers.
Answer:
There are 270 red sweets in the bag
There are 630 sweets in the bag in total
4 x 90 = 360
3 x 90 = 270
369 + 270 = 630
