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mestny [16]
4 years ago
12

itle=" (sin x + 1)cos x \div cos^{2}x" alt=" (sin x + 1)cos x \div cos^{2}x" align="absmiddle" class="latex-formula">
​
Mathematics
1 answer:
shusha [124]4 years ago
7 0

Answer:

tan x + sec x

Step-by-step explanation:

(sinx +1) cos x

------------------------

 cos ^2 (x)

(sinx +1) cos x

------------------------

 cos  (x) cos x

Cancel  cos x from top and bottom

(sinx +1)

------------------------

 cos  (x)

Break apart

sinx / cos x  + 1 /cos x

We know that sin /cos is tan  and 1 /cos = sec

tan x + sec x

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Một miếng đất hình chữ nhật có chu vi 80 mét.Nếu kéo dài thêm 8 mét nữa thì diện tích tăng thêm là 72 mét vuông.Tính chiều dài v
Nataliya [291]

Answer:

Step-by-step explanation:

(D+R) = 80:2 = 40

D = 40-R

(D+8) * R = 72X

Thay D=40-R

(40-R+8)*R = 72X

R=1.55, D=38.45

7 0
3 years ago
I dont know how to do this
ra1l [238]
So LCM means least common multiple, and it would be 210.

Hope this helps you :)

3 0
3 years ago
What is the length of SR?<br><br><br> 18 units<br><br> 9 units<br><br> 12 units<br><br> 15 units
Serjik [45]

Answer:


Step-by-step explanation:

RT = sqrt(20^2 - 16^2)

RT = sqrt(400 - 256)

RT = sqrt(144)

RT = 12


SR/ST=  QR/QT

SR/12 = 20/16

SR = 12 x 20 / 16

SR = 240/16

SR = 15


answer is C.

15 Units


7 0
4 years ago
Zack deposited $1,200 in a savings account that paid 7.75% simple
Eddi Din [679]
<span>The correct answer is: Option (C) $1393.21

Explanation:
At the beginning of the Second year, the total balance would be:

$1200 + ($1200 * 7.75 / 100) = $1293

At the beginning of the Third year, the total balance would be:
$1293 + ($1293 * 7.75 / 100) = $1393.21 (Option C)</span>
6 0
4 years ago
Read 2 more answers
What are the zeros of this function
Irina18 [472]

Answer:  The correct option is

(A) x = 4 and x = 6.

Step-by-step explanation:  We are given to find the zeroes of the graphed function.

We know that

the zeroes of a function y = f(x) are those values of x for which the value of the function (y) becomes zero.

That is, the points on the co-ordinate plane where the function meets the X-axis.

From the graph, we see that

when y = 0, then the values of x are  x = 4 and 6.

Therefore, the zeroes of the graphed function are x = 4 and x = 6.

Thus, option (A) is CORRECT.

6 0
3 years ago
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