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Ostrovityanka [42]
3 years ago
12

Sin(x−y)/sinxsiny= coty - cotx​

Mathematics
1 answer:
andrew-mc [135]3 years ago
4 0

x = 0 \\  \\  \sin^{2}(y) \sin( \frac{x - y}{ \sin(x)} ) -  \sin(x)  \cos(y)\cos(x)\sin(y)= 0

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If x represents an even number, which expression represents an odd number?
Sauron [17]
Test the choices !
Pick an even number, and see what each choice does to it.

Let's start with, say,  6 .
We'll try each choice, and see which one produces an odd number:

a).  6 to the 2nd power. . . . . .  6 x 6 = 36.  That's not an odd number.

b).  6 + 3  =  9  This could be it.  9 is odd. We'll save this one.

c).  3·6 = 18.  That's not an odd number.

d).  6/3 = 2.  That's not an odd number.

The only one that gave us an odd number is (b).


3 0
3 years ago
If a circle has a diameter of 3 cm, what is the circumference? Use 3.14 for (pi).
velikii [3]

9.42 is the circumference, for future refernce its just pi times diameter :)

5 0
3 years ago
Read 2 more answers
Find the value of the expression if x=-7
LUCKY_DIMON [66]

Answer: -16

Step-by-step explanation:

49 would be the result of -7 squared. Due to the fact it is negative, it would cancel out to be positive.

For the numerator, 49-1 is equivalent to 48.

48/x+4

-7+4 = -3

48/-3

= -16

5 0
3 years ago
Nikhil, Davina and Sid share a tin of celebrations amongst themselves in the ratio of 8:12:20 respectively.
Sav [38]

Answer:

160

Step-by-step explanation:

n : d : s

8 : 12 : 20

davina = 48 sweets

48/12 = 4

8 + 12 + 20 = 40

40 x 4 = 160 sweets total

5 0
2 years ago
oshua tracks the points he scores in 10 basketball games. In two games Joshua scored 8 points each, in one game he scored 3 poin
Anna71 [15]
I believe the answer would be 4.2.

Add all the points together and divide by 10
3 0
3 years ago
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