Answer:
steps
Step-by-step explanation:
(1 + sinx)(1 - sinx) = 1 - sin²x = cos²x or = cos² -x
cos -x = cos x
∴ (1 + sinx)(1 - sinx) will not equal cos -x, unless x = ±360° or 0°
where cos ±360° or cos 0° = 1
Answer:
B. neither perpendicular nor parallel
I got 75% but I’m not seeing it...
Answer:
Discount=20%
Profit=14.20%
Step-by-step explanation: