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Sunny_sXe [5.5K]
3 years ago
12

Verify the basic identity. What is the domain of the validity? cot x= cos x csc x

Mathematics
1 answer:
marysya [2.9K]3 years ago
4 0
Expand and simplify LHS - Apply identity sin^2x+cos^2x = 1 To verify: (cotx<span> - </span>cscx)(cosx+1) =-sinx LHS=(cosx/sinx - 1/sinx)(cosx<span>+1)</span>
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Simplify the following expression 5^2 - 4
LenaWriter [7]
Omg this is an elementary answer
5^2 - 4 is
Five to the power of 2 minus 4
5 times 5 = 5 ^ 2 so it would be
25 - 4

In equations it would be 25-4= 21 BUT THIS IS AN EXPRESSION just remember that.
4 0
2 years ago
Read 2 more answers
What is 12x word phrase
svetoff [14.1K]
<span>1.       </span><span>Give the word phrase of 12x
=> 12 is an integer
=> x in a variable or also called as unknown number
=> 12 = twelve
There the word phrase of this given number is
=> twelve times the number or twelve times x
 In giving the word phrase of a certain equation, simply give the word statement of each digits, variable and operations involve
Another example:
 => 5x + 1 – 2
=> five times the number added with one subtracted with two.</span>



7 0
2 years ago
Read 2 more answers
A Lake Tahoe Community College instructor is interested in the mean number of days Lake Tahoe Community College math students ar
Vlad1618 [11]

Answer:

d.

Step-by-step explanation:

Hello!

The population is the set of elements that you are interested in studying. In this example, the instructor wants to know the number of days Lake Tahoe Community College math students are absent from class during a quarter. To do so she will take a random sample of math students and register the number of absences of each student. Each math student is an element of the population.

Then the population is "Lake Tahoe Community College math students"

I hope it helps!

6 0
3 years ago
Ayuda pls :) I love u in advance
GREYUIT [131]

Answer:

I can't be quite specific without no protractor, but I will say it could be in-between 40 degrees and 20 degrees.

Step-by-step explanation: Hope this helps and brainliest if possible!

7 0
3 years ago
PLEASE HELP ME OUT I NEED IT !!
lisov135 [29]

Answer:

(1/2 ,3) or (0.5, 3) is the same

Step-by-step explanation:

The midpoint between (3,5) and (-2,1) would be:

Apply the formula:

x1+x2 / 2 , y1 + y2 / 2

= 3 + (-2) / 2, 5 + 1 /2

= 1/2, 6/2

= 1/2 ,3 or 0.5, 3 is the same

Hope this helped :3

4 0
3 years ago
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