The short answer is yes. In fact, they’re identical .
It helps to know that in Latin, tangent means “touch.” In Geometry, you learned that a tangent barely touches a circle, intersecting the circle at exactly one point.
It also helps to know that in Latin, secant means “sever.” Which makes sense since a secant line slices through a circle.
Now let’s look at the relationships between the sides of a right triangle when that triangle is drawn in Quadrant I of the Unit Circle.
The purple segment is the opposite side of the standard angle, the green segment is the adjacent side of the standard angle, and the blue segment is the hypotenuse. Now, since the hypotenuse is also a radius of the Unit Circle, it has a length equal to exactly 1.
So on this triangle,
##sin(theta)=(op)/1##= the exact length of the purple segment
##cos(theta)=(adj)/1##= the exact length of the green segment
Now we can also draw a different triangle in Quadrant 1.
On this larger triangle, the adjacent side (green segment) has a length of 1. Let’s look at the other segments.
##sec(theta)=(hyp)/(adj)## which on this triangle is:
##sec(theta)=(hyp)/1## = the exact length of the hypotenuse. The same hypotenuse which slices through the Unit Circle. Just like the secant line you learned about in Geometry.
Also, on this triangle:
##tan(theta)=(op)/(adj)## which on this triangle is
##tan(theta)=(op)/1## = exact length of the purple segment, which is a line perpendicular to the radius, and barely touching the Unit Circle at a single point (the point ##(1,0)##).
So the value of the secant of an angle can be determined by measuring the length of a segment that behaves like a secant line from Geometry. And the tangent of an angle can be determined by measuring a segment that behaves like a tangent line from Geometry.
Hope this helps.
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Is There A Formula For This Question How Would I Solve This Given A Market Risk
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Multiple Answers to Choose From:
9.1%12.5%15.3% Solution : Expected return of firm X = Risk free rate + beta * market risk premiumExpected return of firm X = 2.75%+1.25*10%Expected return of firm X15.3%15.30% is the correct answer
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Note: must print out the numbers in one single line.
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Hint: calculating running total must be used.
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Is There Any Relation Between 1 Tangent Ratio In Trigonometry Amp Tangent Of Cir
/in Uncategorized /by developerThe short answer is yes. In fact, they’re identical .
It helps to know that in Latin, tangent means “touch.” In Geometry, you learned that a tangent barely touches a circle, intersecting the circle at exactly one point.
It also helps to know that in Latin, secant means “sever.” Which makes sense since a secant line slices through a circle.
Now let’s look at the relationships between the sides of a right triangle when that triangle is drawn in Quadrant I of the Unit Circle.
The purple segment is the opposite side of the standard angle, the green segment is the adjacent side of the standard angle, and the blue segment is the hypotenuse. Now, since the hypotenuse is also a radius of the Unit Circle, it has a length equal to exactly 1.
So on this triangle,
##sin(theta)=(op)/1##= the exact length of the purple segment
##cos(theta)=(adj)/1##= the exact length of the green segment
Now we can also draw a different triangle in Quadrant 1.
On this larger triangle, the adjacent side (green segment) has a length of 1. Let’s look at the other segments.
##sec(theta)=(hyp)/(adj)## which on this triangle is:
##sec(theta)=(hyp)/1## = the exact length of the hypotenuse. The same hypotenuse which slices through the Unit Circle. Just like the secant line you learned about in Geometry.
Also, on this triangle:
##tan(theta)=(op)/(adj)## which on this triangle is
##tan(theta)=(op)/1## = exact length of the purple segment, which is a line perpendicular to the radius, and barely touching the Unit Circle at a single point (the point ##(1,0)##).
So the value of the secant of an angle can be determined by measuring the length of a segment that behaves like a secant line from Geometry. And the tangent of an angle can be determined by measuring a segment that behaves like a tangent line from Geometry.
Hope this helps.
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