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serg [7]
3 years ago
12

Trình bày ứng dụng của vi phân toàn phần trong việc tính xấp xỉ giá trị của một hàm số hai biến. Cho ví dụ.

Mathematics
1 answer:
Anastaziya [24]3 years ago
6 0
Can you translate this to English
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If you borrow $675 for six years at a interest rate of 10% how much interest will you pay
murzikaleks [220]

Answer:

the answer is $40.5

Step-by-step explanation:

the basic formula of finding our interest is I = PxRxT

P (principal) = 675

R (rate) = 10%  (we have to turn it into a decimal which is 0.010)

T (time) = 6 years

so :

I = 675 x 0.010 x 6

I = 40.5


7 0
3 years ago
For the remaining questions, show your work.
ser-zykov [4K]

Step-by-step explanation:

6a.

- 5 =  - 3 + a

- 2 = a

6b.

3c + 2 =  - 22

3c =  - 24

c =  - 8

5 0
3 years ago
Read 2 more answers
15. COLLEGE COSTS The table shows some college costs. How much more is tuition than
ivanzaharov [21]

Answer: but 8x-4

Step-by-step explanation:

3 0
2 years ago
Find the exact value of the given expression.<br> sin(2cos^-1(5/13))
xeze [42]

Answer:

+120/169 or -120/169

Step-by-step explanation:

  • let cos^{-1}[\frac{5}{13}  ] = \alpha

where, alpha is some angle that satisfies the assumed condition.

  • so, cos\alpha= 5/13

[ taking cos to the other side  or applying cos on both sides]

  • now, substitute this in the given expression
  • sin(2cos^-1(5/13)) = sin(2\alpha )

as sin\beta =  + or -\sqrt{1-(cos\beta) ^{2}

[by general trigonometry formula: cos^{2}[\beta]  +sin^{2}[\beta]=1]

so if  cos\alpha= 5/13, we can get sin\alpha from the above formula as + or - 12/13

(because, after taking square root on both sides we keep + or -]

  • as, sin2\beta  = 2*sin[\beta ]*cos[\beta ]

[by general trigonometry formula]

  • here, now sin[2\alpha ]=2*(+or- 12/13)*5/13\\

so, the final value can be 120/169 or -120/169.

4 0
3 years ago
The sum of two numbers is seventeen. One number is thirteen more than the other. Find the numbers.
AlexFokin [52]

Answer:

the second number is 4

Step-by-step explanation:

13+x=17

x=4

6 0
2 years ago
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