Answer:
It is increasing from -1 to 1.
It is decreasing from negative infinity to -1, then decreases again from 1 to positive infinity.
Answer:
The answer is 2 because 1+1=2
Answer:
1
Step-by-step explanation:
Given 
multiply the numerator and denominator with 2
we get 
We know that sin2x=2sinxcosx

Now consider y=2x
As x→0 2x→0 y→0
Now limit changes to
=1