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2 years ago

Tan(x)/sec(x)=sin(x)

Mathematics

1 answer:

Harlamova29_29 [7]2 years ago

5 0

Answer:

(identity has been verified)

Step-by-step explanation:

Verify the following identity:

tan(x)/sec(x) = sin(x)

Hint: | Eliminate the denominator on the left hand side.

Multiply both sides by sec(x):

tan(x) = ^?sec(x) sin(x)

Hint: | Express both sides in terms of sine and cosine.

Write secant as 1/cosine and tangent as sine/cosine:

sin(x)/cos(x) = ^?1/cos(x) sin(x)

Hint: | Come to a conclusion.

The left hand side and right hand side are identical:

Answer: (identity has been verified)

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Rachel set up a display placing 126 painted rocks in each of 3 rows. How many rocks arer in Rachels display? Choose numbers from

Sophie [7]

348 rocks because if you add 126 three times, or multiply it by 3, it equals 348. The numbers from the box you would use are 300, 30, and 18 then add them together

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3 years ago

Please can someone help me solve 10x+5=15

telo118 [61]

Answer: The value of x is 1

Step-by-step explanation:

10x + 5 = 15

Collect the like terms which in this case are the whole numbers "5" and "15")

10x = 15 - 5

10x = 10

Divide both sides by 10

10x/10 = 10/10

x = 1

Thus, the value of x is 1

6 0

3 years ago

Read 2 more answers

Find the first partial derivatives of the function. f(x, y) = x6 + 9xy5 fx(x, y) = _________ fy(x, y) = _____________

Tju [1.3M]

Answer:

$f_x(x,y)=6x^{5}+9y^5$

$f_y(x,y)=45xy^{4}$

Step-by-step explanation:

Given : Function $f(x,y)=x^6+9xy^5$

To find : The first partial derivatives of the function fx(x, y) and fy(x, y) ?

Solution :

Function $f(x,y)=x^6+9xy^5$

Partial derivative w.r.t to x means y treat as constant,

$f_x(x,y)=6x^{6-1}+9\times 1x^{1-1}y^5$

$f_x(x,y)=6x^{5}+9x^{0}y^5$

$f_x(x,y)=6x^{5}+9y^5$

Partial derivative w.r.t to y means x treat as constant,

$f_y(x,y)=0+9\times 5xy^{5-1}$ (Derivative of constant is zero)

$f_y(x,y)=45xy^{4}$

4 0

3 years ago

Pls help and show workings

uranmaximum [27]

Answer:

SSS

Step-by-step explanation:

They are all sides so SSS.

hope this helps

5 0

3 years ago

Solve by Elimination: x - 2y = 4 X - 1y = 2 its urgent

sattari [20]

Answer:

x = 0 and y = -2

Step-by-step explanation:

x - 2y = 4 and X - 1y = 2

you mentioned elemination aka substraction

so you when substract x - x = 0 -2y -( -y) = -y and 4 -2 = 2

so - y = 2

or y = 2

now substitute the numbers

x + 4 = 4

x = 0

and try it with one of the equation or sometimes trying on both of them can be very helpful

7 0

2 years ago