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3 years ago

Cot^2x-csc^2x=-1 for all values of x true or falsse

2 answers:

4 0

Our basis for this equality is the pythagorean theorems of trigonometry. There are three equations for the pythagorean theorems. These are:

sin²x + cos²x =1
1 + tan²x = sec² x
1 + cot² x = csc² x

These are all derived from circle geometry on the cartesian plane. Now, the useful trigonometric property to be used is the third one. Rearranging this, we come up with

cot²x - csc²x = -1

This coincided with the given equation. Therefore, this is true. This is because it is already established from the pythagorean theorems.

Korolek [52]3 years ago

3 0

Answer: True Apex

Step-by-step explanation:

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Gnoma [55]

That means that the discounts are the same
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3 years ago

2x + 3x + 4 equals .

RUDIKE [14]

Add like terms
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kenny6666 [7]

Answer:

Step-by-step explanation:

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3 years ago

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What is the solution to the quadratic equation? y = x^2-4

Anika [276]

(-2,2)

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3 years ago

5. There are two kinds of products (called DA and GA) produced in your company every day. Alsothere are two kinds of materials (

chubhunter [2.5K]

Answer:

a) $56000
b) DA = 2, GA = 10

Step-by-step explanation:

Given

DA = A + B ⇒ $3000
GA = A + 2B ⇒ $5000
Number of A = 12
Number of B = 22

We can see from the equations that

GA - DA = B ⇒ $2000 and
A = $1000 and B = $2000 in terms of profit

So greater use of unit B brings greater profit. We don't want any unit is left over, so get this equation.

A + B = 12
A + 2B = 22

Is the equation set to indicate use of the units A and B

Solving we get

A = 2 and
B = 10

It this case all the units are used and profit is maximum

2*$3000 + 10*$5000 = $56000

Number of DA = 2
Number of GA = 10

8 0

4 years ago