Answer:
sin∅ = 12/13
Step-by-step explanation:
use pythagorean theorem to find the missing side
a² + 5² = 13²
a² = 13² - 5²
a² = 169 - 25
a² = 144
a = 12
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Sin∅ = opp/hyp
sin∅ = 12/13
One way to do this is to notice
Then
We have
and since has a period of ,
and so
A is the correct answer to this question because AC and BC differ because the B must be changed to an A.
15/8 is already an improper fraction, if you want a proper fraction the answer is 1 and 7/8
Answer:
A) x = ±2i√3
Step-by-step explanation:
We presume you want to find x such that f(x) = 0.
Divide by 13:
x² + 12 = 0
Subtract 12:
x² = -12
Take the square root:
x = ±i√12 = ±2i√3