If x is the angle of the fourth quadrant. When tan(x) = -2, then what is the value of sec(x)?
Anonymous Quiz
23%
1/√5
42%
√5
23%
-√5
12%
√2
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Which one of the following is true about the trigonometric function?
Anonymous Quiz
14%
Sin(30°) = Cos(50°)
41%
Sin(30°)² + cos(60°)² = 1
18%
Sin(k) = Cos( 180° - k)
27%
Cos(k) = Sin(90° -k)
Which of the following angles is not co-terminal with 60°?
Anonymous Quiz
30%
7π/4
30%
-660°
29%
780°
10%
-5π/3
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Which of the following is not equal with the rest?
Anonymous Quiz
19%
sin(215°)
33%
-cos(55°)
27%
-sin(145°)
22%
-cos(125°)
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In which of the following intervals are both the sine and cosine functions are decreasing?
Anonymous Quiz
18%
(π/4, 5π/4)
40%
(π/2, 5π/4)
18%
(π/2, 3π/2)
23%
(π/2, π)
If the magnitude of cross product of two vectors is equal to the magnitude of their dot product, then what is the angle between the two vectors?
Anonymous Quiz
45%
90°
16%
60°
7%
30°
32%
45°
SAT - Oromia 2017 April.pdf
385.3 KB
🔰Grade 12 model Examination
🔰Second semester
🔰Second semester
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If a - b = 18.4 and a + b = 15, what is the value of a² - b²?
Anonymous Quiz
44%
276
21%
33.4
23%
184
13%
270.4
👏3🤔2
Which of the following is the equation of circle whose center is C(2, -3), and its radius is 5 ?
Anonymous Quiz
9%
(x+2)² + (y - 3)² = 5
22%
(x + 2)² + (y - 3)² = 25
31%
(x - 2)² + (y + 3)² = 5
38%
(x - 2)² + (y + 3)² = 25
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