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Mariulka [41]
2 years ago
9

Verify that each equation is an identity. Show Work plzzz!!!

Mathematics
1 answer:
Morgarella [4.7K]2 years ago
3 0

sin^2(x)[csc^2(x)+sec^2(x)]=sec^2(x) \\\\[-0.35em] ~\dotfill\\\\ sin^2(x)[csc^2(x)+sec^2(x)]\implies sin^2(x)\left[\cfrac{1}{sin^2(x)}+\cfrac{1}{cos^2(x)} \right] \\\\\\ ~~\begin{matrix} sin^2(x) \\[-0.7em]\cline{1-1}\\[-5pt]\end{matrix}~~ \left[\cfrac{cos^2(x)+sin^2(x)}{~~\begin{matrix} sin^2(x) \\[-0.7em]\cline{1-1}\\[-5pt]\end{matrix}~~ cos^2(x)} \right]\implies \cfrac{1}{cos^2(x)}\implies sec^2(x)

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Please help idk nothing
Rainbow [258]
Convert 9 1/2 into a mixed fraction: 19/2.
Now, multiply with 6 which in fraction form is 6/1
19/2 times 6/1 equals 114/2

Now you can divide 114/2 which is 57 inches squared.

Have a good day ! :)
7 0
3 years ago
Which country is a democracy that legally requires its citizens to vote?
Studentka2010 [4]

Answer:

Costa Rica

Step-by-step explanation:

3 0
3 years ago
Rewrite the equation by completing the square.<br>x^2-2x+1=0​
kaheart [24]

Answer:

(x - 1)² = 0

Step-by-step explanation:

Given

x² - 2x + 1 = 0 ( subtract 1 from both sides )

x² - 2x = - 1

To complete the square

add ( half the coefficient of the x- term )² to both sides

x² + 2(- 1)x + 1 = - 1 + 1

(x - 1)² = 0

5 0
3 years ago
The product of 5 more than a number, and 4
Lyrx [107]

Answer:

x + 5 * 4


In this problem we have to transfer the expression from verbal to mathematical language. Which would be:

x + 5 * 4

"x" represents "a number"

"5 more than a number" is represented by "x + 5"

"the product of" is indicating a multiplication, which is represented by "*"



Hope it helped,


BioTeacher101

3 0
3 years ago
Read 2 more answers
Solve for x thanks .
OleMash [197]

Answer:

x = 3.87

Step-by-step explanation:

Using the right angle altitude theorem, we know that all three triangles are congruent, so the lengths of corresponding sides of the triangles are in proportion..

AD/DB = DB/DC

15/x = x/1

x² = 15

x = √15

x = 3.87

8 0
2 years ago
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