Answer:
I think its the first option
Step-by-step explanation:
I'm not sure
Answer:
0.07 divided by 1.22 is 0.057
If you're rounding it'll be 0.1
Answer:
see explanation
Step-by-step explanation:
Not sure quite what you are asking, but
Using the trigonometric identity
cos² x = 1 - sin²x, then
cos²x - sin²x
= 1 - sin²x - sin²x
= 1 - 2sin²x
Thus
cos²30° - sin²30° = 1 - 2sin²30°
Which question? I can’t see it
