Answer:
the 2 is the ones 2 means 2
Step-by-step explanation:nothing
Answer:
9b^2+3b-18
Step-by-step explanation:
make a box and multiply each of the parts
Answer:
see explanation
Step-by-step explanation:
Using the trigonometric identities
secx =
, cosecx = 
cotx =
, tanx = 
Consider the left side
secA cosecA - cotA
=
×
- 
=
- 
= 
=
( cancel sinA on numerator/ denominator )
= 
= tanA = right side ⇒ proven
Answer:
it is a 30 degree angle
Step-by-step explanation: