Topic : Function-Function value
1.
2.
3.
from: category_eng

1.Calculation
You can use the graph of the function. But it is not easy to draw a graph. Just plug in number.
1. increase
2. 1/165 > 1/166
3. 165^2 - 165 < 166^2 - 166

Ans: C

2.Calculation
t is given as 6. So.. if you know c, then you can find the n.
w3rfeverwer

Ans: D

3.Calculation
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Ans: D

1.
Just plug in a number. (-1)^even=1 (-1)^odd=-1

1. A
Calculation
Just plug in a number. (-1)^even=1 (-1)^odd=-1
(-1)^4=1
(-1)^3=-1
(-1)^2=1