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21 Cards in this Set
- Front
- Back
- 3rd side (hint)
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Sin 30
Sin 45 Sin 60 |
Sin 30= 1/2
Sin 45= square root 2/2 Sin 60= square root 3/2 |
1/2
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Cos 30
Cos 45 Cos 60 |
Cos 30= square root 3/2
Cos 45 square root 2/2 Cos 60= 1/2 |
square root 3/2
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Tan 30
Tan 45 Tan 60 |
tan 30= square root 3/3
Tan 45= 1 Tan 60= square root 3 |
square root 3/3
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What formula do you use to find radian measure of theta
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Theta = s/r
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What is the formula for the area of a triangle
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A= 1/2 x ab x sin theta
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What does 180 degrees equal to?
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pie
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How do you convert degrees to radians?
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multiply by pie/180
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How do you convert from radians to degrees?
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multiply by 180/pie
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What is the arc length formula?
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s=r(theta)
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What is the sector Area formula
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A=(1/2) x r squared (2) x theta
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What two formulas do you use to find the shaded segment of a circle? what do you do with those two formulas?
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1) Area of sector
2) Area of triangle 3) Area of sector minus Area of Triangle to get the area of the segment |
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How do you find the amplitude?
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maximum minus minimum divided by 2
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What is the difference between a sin graph and a cos graph
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Sin graph starts at points (0,0); cos graph starts at points (0, 1)
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What are x-intercepts? What are y-intercepts?
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X intercepts are the points at which the line hits the points on the X-axis; y intercepts are the points at which the lines hits the points on the y-axis
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What is 2 pie/B
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the period
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How do you evaluate these kinds of expressions:
cos 4(pie)/3 |
1) find reference angle (convert to degrees and subtract answer by 180: 240-180)
2) the answer here is cos 60 which equals to 1/2. But now you have to find whether it's negative or positive. cos 240 Degrees in the the third quadrant which makes it negative |
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csc=?
Cot=? Sec=? |
csc=sin
cot=tan sec=cos |
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90 degrees is what in radians?
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pie/2
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270 degrees is what in radians?
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3 (pie)/2
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360 is what in radians?
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2(pie)
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When y=tan x, what is the asymptote?
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+ or - pie/2
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