Answer:
See below.
Step-by-step explanation:
We know that
tanA + tan B
tan (A + B) = ---------------------
1 - tanAtanB
Substituting for A + B
tan (A + B) = tan pi/4 = 1.
tanA + tan B
So ------------------ = 1
1 - tanAtanB
Therefore tanA + tan B = 1 - tanAtanB.
Answer:

Step-by-step explanation:
Given



<em>See attachment</em>
Required
Which sine of angle is equivalent to 
Considering 
We have:
--- i.e. opposite/hypotenuse
So, we have:

Divide by 4

Hence:
is correct
multiply 12,800 x 15 = 192,000 then divide 192,000 by 100 = 1,920 so the answer is $ 1,920. Hope this helps!
Answer:
44°
Step-by-step explanation:
180-30-14=136
180-136
44