1. The secant is defined as the inverse function of co-secant or cos function
Hence when the cosine is 0, the secant is 1/0 which is undefined. So, when cosine is 0, secant is undefined
Cos 30 =
Cos 45 =
Cos 180 = -1
cos 270 =0
Since cos 270 is 0, secant of 270 is undefined
Answer is d: 270
2. cosec (-x) = - cosec (180 -x)
We have cosec(-166) = - cosec (180-14) = -cosec (14)
Alternatively we can confirm this as csc (-166) = -4.133565 and -csc(14) = -4.133565; Hence, we can reconfirm that the answer arrived at is right
Therefore csc (-166) = -csc(14) (Option B) is the right answer
Answer:
The area under the curve is one.
Step-by-step explanation:
A density curve for all of the possible weights between 0 pounds and 1000 pounds is in the shape of a rectangle. What is the value of the density curve in this interval?
The area under the curve is one.
Reason
Lets draw an histogram. On the vertical axis is the frequency distribution. horizontal axis is the weights. the interval between the bars will be 1.
the height of the bars will be the frequency distribution.
we get the area of the bars by multiplying the bars width and height. add up all with the other weight.
we get 1
Answer:
The correct answer is C. 42.2%
Step-by-step explanation:
Total number of cards in the deck of playing cards = 52
Number of spades in the deck of playing cards = 13
Number of cards other than spade = 52 - 13
= 39
If she draws a card 3 times and doesn't get a spade, she loses.
So, She loses only if he gets all the three cards other than spade
Now, The card is replaced if she does not get a spade.
Hence, The correct answer is C. 42.2%