Answer:
33 seconds
Step-by-step explanation:
Answer: He split it into unequal halves which would make his way wrong. the correct way to do it would be to cut it so all the lines met in the middle of the pie
Step-by-step explanation:
Question:<u /> <em>Simplify the trigonometric expression sec</em><span><em>Өcos</em></span><span><em>Ө.</em></span>
For each of the three basic trig functions, (sin, cos, tan) there are three more which act as their reciprocals. (csc, sec, and cot respectively)
Reciprocals, of course, are flipped fractions. If you have some number x, the reciprocal can be expressed as
![\frac{1}x](https://tex.z-dn.net/?f=%5Cfrac%7B1%7Dx)
.
An important property of reciprocals is that if you mutliply them together they will cancel out--take
![\frac{4}7\times\frac{7}4](https://tex.z-dn.net/?f=%5Cfrac%7B4%7D7%5Ctimes%5Cfrac%7B7%7D4)
for example.
Since sec
<span>Ө is literally <em>defined</em> as the reciprocal of cos</span><span>Ө, it is evident that
![\boxed{\sec\Theta\cos\Theta=1}](https://tex.z-dn.net/?f=%5Cboxed%7B%5Csec%5CTheta%5Ccos%5CTheta%3D1%7D)
</span>
The solution is where the lines intersect.
So the one where the lines intersect at (4,-1) is the 2nd one
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