We'll assume this is an arbitrary triangle ABC.
A) No, the sines of two different angles can be whatever they want
B) sin(B)=cos(90-B)
Yes, that's always true. The "co" in cosine means "complementary" as in the complementary angle, which adds to 90. So the sine of an angle is the cosine of the complementary angle.
C) No, the correct identity is sin(180-B)=sin B. Supplementary angles share the same sine.
D) Just like A, different triangle angles often have different cosines.
Answer: Choice B
Answer:10% of 82 is 820so 60% of 82 is 4800
Step-by-step explanation:
i hope im right
Answer:a
Step-by-step explanation:
That’s one cracked screen
Answer:
https://iepa.org.au/network-news/it
Step-by-step explanation:
that link is answer
Answer:
it is 13 feet
Step-by-step explanation:
because it is 4.33333 yards
