Where’s the picture? Then I could help you but I don’t see one
Answer:
21
Step-by-step explanation:
all the details are in the attached picture.
Answer:
2
Step-by-step explanation:
When in doubt, have your calculator evaluate this.
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The reference angle for 5π/3 is π/3. The angle is in the 4th quadrant, where the secant is positive.
sec(5π/3) = sec(π/3) = 1/cos(π/3) = 1/(1/2)
sec(5π/3) = 2
This is a geometric sequence where each number is being multiplied by -2
4th quadrant is positive x (cos) and negative y (sin)
Use the Pythagorean Theorem to calculate the value of y (sin).
x² + y² = c²
5² + y² = 13²
25 + y² = 169
y² = 144
y = 12
Since the y-value is negative in the 4th quadrant, then y = -12