Round 5,762.384 to the nearest ten
2 answers:
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cos is . So, if cos(a)=
then use Pythagorean Theorem to determine the length of the "opposite" side.
5² + x² = 13²
25 + x² = 169
x² = 144
x = 12
Now that you know the length of the opposite side, you can plug it in for sin.
sin is . So, sin(a) =
Now, if you switch so you are looking for sin(b), the cos and sin also switch.
cos(b) = sin(a) =
sin(b) = cos(a) =
Answer: sin(b) =