This happens whenever the terminal point of
lies in either the first or second quadrants.
Meanwhile,
since you already know sine is positive. Cosine is positive when the angle lies in the first or fourth quadrant.
Sine and cosine are both positive only when
is the first quadrant, which means this angle's terminal point lies in the first quadrant (A).
Answer:
a=2
Step-by-step explanation:
-15a-19-35=-84
-15a-19=-49
-15a=-30
a=2
Answer:
obtuse triangle
Step-by-step explanation:
Answer:
Photomath help you get the answer
Step-by-step explanation: