If sin42 degrees = 2/3 then cos48 degrees = what?
If tan20.5= 3/8, the tan69.5= what?
1 answer:
Big ifs, question writers. These are of course approximations.
The "co" in cosine comes from complementary angles. It means since


Answer: cos 48° = 2/3
Similarly,


Answer: tan 69.5° = 8/3
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