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svlad2 [7]
4 years ago
7

Cosine is the square root of 3 over 2. How do I find the secant expression without a square root in the denominator by rationali

zing the denominator?
Mathematics
2 answers:
konstantin123 [22]4 years ago
7 0
Hello,

cos(x)= \dfrac{ \sqrt{3} }{2} \\
sec(x)= \dfrac{1}{cos(x)} = \dfrac{1}{\dfrac{ \sqrt{3} }{2}} =\dfrac{ 2*\sqrt{3} }{\sqrt{3}*\sqrt{3}}=\dfrac{2*\sqrt{3}}{3}
Xelga [282]4 years ago
4 0
Than cos = sqrt3 /2 so 

sec = 1/(sqrt3 /2)

sec = 2/sqrt3 

sec = 2sqrt3 /3

hope helped 
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If you flip a coin and roll a 6-sided die, what is the probability that you will flip a heads and roll a 2 ?
katen-ka-za [31]

Answer:

1/12

Step-by-step explanation:

When you flip a coin, there are two possible outcomes. When you roll a die there are six possible outcomes. This means the chances of getting a heads is 1/2 and the chances of rolling a 2 are 1/6. To find the probability that both will occur, multiply the two probabilities: 1/6 * 1/2 = 1/12

4 0
3 years ago
Find the 76th term of the following arithmetic sequence.<br> 15, 22, 29, 36, ...
andrey2020 [161]
<h2>Arithmetic Sequence</h2>

An = A1 + (n - 1)d \\ A76 = 15  \:  + (76 - 1)7 \\ A76 = 15 + 525 \\ A76 =   540

8 0
4 years ago
If x=2y=3z then x:y:z equals what?
Alisiya [41]

Answer: x=6 y=3 z=2

Step-by-step explanation: The question is very vast so im guessing that its just finding 3 whole numbers that can equal the same ammount being multipied by 2 and 3. I chose 6. But theres many others. The answer should be correct because if we replace the letters with the numbers i put in the answer it should look like this: 6=2•3=3•2

When we do simplify this we should get 6=6=6 which is true.

Again you can use different numbers for example 12 as X. Then you need to divide 12 by whats behind the Y. So 12÷2 is 6. So Y is equal to 6. To find Z all you need to do is follow the same steps as Y. Find the number behind Z (3) and divide that into 12. So it would be 12÷3. And if you do the math right it should look like this: X=12, Y=6, Z= 4. And when you imput the numbers to thier corresponding letter it should look like this 12=2(6)=3(4) which simplified looks like 12=12=12 which is true.

5 0
3 years ago
Find the initial point P of a vector u with terminal point Q(2,0,2), such that:9Fdhe iiial point P of a vector iu with terminal
denpristay [2]

Answer:

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  b)  P = (7, 4, 1)

Step-by-step explanation:

a) You want Q-P = (5, 4, -1) where Q = (2, 0, 2). Solving for P, we get ...

  P = Q - (5, 4, -1) = (2-5, 4-0, 2-(-1))

  P = (-3, 4, 3)

__

b) The vector in the opposite direction of the one given is the given one multiplied by -1.

  P = Q - (-1)(5, 4, -1) = (2+5, 0+4, 2-1)

  P = (7, 4, 1)

3 0
3 years ago
a sales clerk iss placing books side by side on a shelf she has 12 copies of the same book if the books cover 27.6 in of a shelf
MAVERICK [17]

I believe each book would be 2.3 inches wide

6 0
3 years ago
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