LEFT ARROW - move card to the Don't know pile.You can also use your keyboard to move the cards as follows: If you've accidentally put the card in the wrong box, just click on the card to take it out of the box. When you've placed seven or more cards in the Don't know box, click "retry" to try those cards again. If you knew the answer, click the green Know box. Look at the large card and try to recall what is on the other side. Use these flashcards to help memorize information. It is with a horizontal line parallel with the ground. T or F? The angle of depression is NOT made suing the vertical line. It is NOT between the downward vector and the vertical line. The angle of depression is between a downward vector and a horizontal line that is parallel to the ground. T or F? The angle of elevation and the angle of depression are always equal if there is an observer at the ground and at the top. of any angle is the same as the reference angle aside from possibly the sign. The Fundamental Identity solved in terms of sin is _.įor any nonquadrantal angle, the _ angle for θ is the positive acute angle θ' formed by the terminal side and the nearest x-axis. The Fundamental Identity solved in terms of cos is _.
The Fundamental Identity of trig is the equation _. The angle of _ for a point is the angle between a vector from the observer to a point BELOW the observer and a horizontal line parallel with the ground at the level of the observer.
The angle of _ for a point is the angle between the observer and the ground to a point ABOVE the gound. The sum of the angles of a triangle always equals _°. Radians measure _ around the circle and degrees measure _.īesides y/x, the tan of an angle can also be calculated by the _/_.īesides x/y, the tan of an angle can also be calculated by the _/_. Y coordinates on the unit circle are the _ of the angle. X coordinates on the unit circle are the _ of the angle. If an angle lies in quadrant IV, the sec will be _ (+ or -). If an angle lies in quadrant III, the cot will be _ (+ or -). If an angle lies in quadrant II, the sec will be _ (+ or -). All are (+) in Quad I, sin and csc are (+) in II, tan and cot are (+) in III, cos and sec are (+) in IV What is the mnemonic for remembering the sign of a fxn in each quadrant? What does it mean?Īll students take calculus. T or F? Angles of the same proportion, regardless of size, will have the same values for the trig fxns. Since y = 0 for any point on the x-axis, _ and _ are undefined for any angle that terminates on the x-axis. Since x = 0 for any point on the y-axis, _ and _ are undefined for any angle that terminates on the y-axis. Y/r (opp/hyp) (NOTE: r = hypotenuse not radius!) Linear velocity in terms of angular velocity is given by the formula _. V = s/t (i.e., v = d/t) or v = αr/t (where s = αr) Linear velocity in a circle is given by the formula _. Ω = α/t (e.g., rpm, rad/sec, rad/min, degrees/hour, etc.) Angular velocity is only concerned with revolutions per time not the linear speed of the object.Īngular velocity is given by the formula _. T or F? Angular velocity and linear velocity are unrelated. We express angular velocity in _ per unit of time. S = αr (s=arc length, α=radians, r=radius)įor an object moving in a circle, there are 2 types of velocity _ velocity and _ velocity.įor one revolution an object moves _ radians. The radian measure is the measure of _.ĭirected length means the length is either _ or _. The circumference (C) of a unit circle is defined by the formula _. Two angles whose terminal angles are in the same position are called _ angles.Ĭoterminal measures differ by multiples of _ degrees.Ĭoterminal angle: m(β) = m(α) + _ where k = _.Įach degree is divided into _ equal parts called _.Įach minute is divided into _ equal parts called _.Ī circle with a radius of 1 (no unit) is called a _.
T or F? Straight and right angles are quadrantal angles. The measurement of an angle is denoted with _.Ī positive angle goes _ and a negative angle goes _.Īn angle in standard position is said to lie in the quadrant where _.Ī _ angle has its terminal side on an axis. The arc through which the terminal side of a central angle moves is called the _.Īn angle located in a Cartesian coordinate system with the vertex at the origin and initial side on the x axis is said to be in _.
The rotated ray of an angle is the _ side.Īn angle whose vertex is the center of a circle is called the _ angle. The common endpoint of an angle is called the _. The union of two rays with a common endpoint A point on a line together with all points of the line on one side of that point
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