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aliya0001 [1]
3 years ago
12

Could you prove this trignometry identity? It's sin x cot x =cos x

Mathematics
2 answers:
chubhunter [2.5K]3 years ago
8 0

Answer:

sinx ×cosx/sinx

sinx gets cancelled

cosx

Masja [62]3 years ago
5 0
Cotx can also be written as cosx/sinx. So sinx × cosx/sinx = cosx.
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Can someone please help
Harrizon [31]

Answer:

31,41,51,71

Step-by-step explanation:

8 0
2 years ago
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Find m∠B. Put the answer below.<br> m∠B =
kkurt [141]

\huge\underline{Answer -}

we know that

tan\:θ \:= \frac{perpendicular}{base}\\

thus in the question ,

\tan(B)  =  \frac{perpendicular}{base}  \\  \\   \tan(B)  =  \frac{\cancel{24} \sqrt{3} }{\cancel{24}}  =  \sqrt{3}  \\  \\  \tan(60)  =  \sqrt{3}

therefore , m∠B = 60°

hope helpful~

8 0
2 years ago
D = {x|x is a whole number}
pickupchik [31]

The given statement is true.

Step-by-step explanation:

Given sets are:

D = {x|x is a whole number}

E = {x|x is a perfect square between 1 and 9}

F = {x|x is an even number greater than or equal to 2 and less than 9}

as the sets are given in set builder notation,, we will first write the sets in set notation.

So,

D = {0,1,2,3,4,...}

E = {4,9}

F = {2,4,6,8}

Now,

EUF = {4,9} U {2,4,6,8}

= {2,4,6,8}

Hence,

The given statement is true.

Keywords: Union,sets

Learn more about sets at:

  • brainly.com/question/9381523
  • brainly.com/question/9231234

#LearnwithBrainly

4 0
3 years ago
Selected value of each decimel number when it is rounded to the nearest whole number ​
PtichkaEL [24]

Answer:

  1. 5
  2. 6
  3. 6
  4. 5

Remember the decimal <em>hundredths</em> rounding ruleset.

  • If a decimal is below .50, round down.
  • If a decimal is .50, round up.
  • If a decimal is above .50, round up.

View this array below to get a better image.

\left[\begin{array}{ccc}0.49(down)&0.50(up)&0.51(up)\end{array}\right]

So, for example, if you had 6.51, you would round that up to 7, and if you had 8.47, you would round that to 8

6 0
2 years ago
ANYONE KNOW THE ANSWER TO THIS??
mojhsa [17]

Answer:

x = 14 is your answer

Step-by-step explanation:

76 = 7x-22, so to figure it out, you first move -22 to the other side and get

76+22 = 7x.

add them together and you get 98 = 7x

7x would be your equation, so divide 98 by 7 and you get your solution

x = 14 is your answer

3 0
3 years ago
Read 2 more answers
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