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PIT_PIT [208]
3 years ago
15

If ,. The volume of tetrahedron whose three adjacent sides are represented by vectors is, where means angle between.

Mathematics
1 answer:
marissa [1.9K]3 years ago
6 0

Answer:Given | a⃗ | = | c⃗ | = | c⃗ | = 2 Angle between a⃗ and b⃗ is pi3 a⃗·b⃗ = | a⃗ | | b⃗ |co

Step-by-step explanation:

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Please solve Questions - 18 , 20 , 21 <br>Show proper work. Thank-you!
Ymorist [56]
18. If f(x)=[xsin πx] {where [x] denotes greatest integer function}, then f(x) is:
since x denotes the greatest integers which could the negative or the positive values, also x has a domain of all real numbers, and has no discontinuous point, then x is continuous in (-1,0).

Answer: B]

20. Given that g(x)=1/(x^2+x-1) and f(x)=1/(x-3), then to evaluate the discontinuous point in g(f(x)) we consider the denominator of g(x) and f(x). g(x) has no discontinuous point while f(x) is continuous at all points but x=3. Hence we shall say that g(f(x)) will also be discontinuous at x=3. Hence the answer is:
C] 3

21. Given that f(x)=[tan² x] where [.] is greatest integer function, from this we can see that tan x is continuous at all points apart from the point 180x+90, where x=0,1,2,3....
This implies that since some points are not continuous, then the limit does not exist.
Answer is:
A]


3 0
3 years ago
What do you think the answer is, Hurry.
Svet_ta [14]
The answer of this problem is A because 3 times 21 is 63 and then you plus 1 
which is 64 
4 0
3 years ago
Read 2 more answers
The price of a share of stock for company XYZ at the beginning of the week was $23.99. Over the next five days, the share of sto
ladessa [460]
$25.12

Work:

23.99+3.60=27.59

27.59-4.51=23.08

23.08+0.95=24.03

24.03+2.17=26.20

26.20-1.08=25.12
7 0
3 years ago
Read 2 more answers
Find the values of x and y?
lakkis [162]

Answer:x=20 y=70

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
Help me please thanks
stiks02 [169]

We have slope intercept form.  Parallel means the same slope, and we get to choose the intercept to fit the new point (-6,0).

y = (1/3) x + b

0 = (1/3) (-6) + b

2 = b

Answer y = (1/3) x + 2 third choice



6 0
3 years ago
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