Question

The second ☝️
Please

Answer 1

Answer:

199

both the exponents are added

second law of exponent

Answer 2

Answer:

(b) 0

Step-by-step explanation:

(-1)^ even = +1

For Example :- (-1)² = 1 where 2 is even.

(-1)^ odd = -ve

For Example :- (-1)³ = -1 where 3 is odd.

Here, (-1)^99 is (-1) where 99 is odd

and (-1)^100 is 1 where 100 is even.