Answer:

Odd function
Step-by-step explanation:
We are given that

We have to determine the value of
and find tangent function is odd,even or neither.


We know that


By using identities
Then, we get


Odd function: If 
Even function:If 

Therefore, function is an odd function.
4 bicycles 2 tricycles
4 (bicycles)times 2(number of wheels on each bicycle) = 8
2 (bike) time 3 (number of wheels on each) = 6
8+6=14
Step-by-step explanation:
I'll help if you'd like
If all 25 questions are different,
When order of selection counts:
P(25,7)
=25!/(25-7)!
=15511210043330985984000000/6402373705728000
=2422728000
When order of selection does not count count:
C(25,7)
=25!/(7!*(25-7)!)
=15511210043330985984000000/(6402373705728000*5040)
=480700