Question

1^5+2^5+3^5.......+99^5​

Answer 1

Answer:

If we do n5n5 the last digit of the result always comes the same as the last digit of n.

Now, if we add (15+25+35+……..+99515+25+35+……..+995)

The last digit will come as the last digit of the addition (1+2+3+…..+99).

Now,

The last digit of the addition (1+2+3+…..+99)

= The last digit of 99×(99+1)299×(99+1)2

= The last digit of 99×100299×1002

= 0

So, the last digit of the addition,

(15+25+35+……..+99515+25+35+……..+995) will be Zero

Step-by-step explanation:

Hope you understood it..

Answer 2

Meninges

The brain and spinal cord are protected by bony structures — the skull and spinal column. Meninges are membranes that cover and protect the brain and spinal cord.

sorry ji....