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3 years ago

Can the square of an integer be a negative number? Explain.

1 answer:

5 0

Answer: how ever no negative number can really have a square root however it is possile to wokr with a more incluesive set of number so i belive no

Step-by-step explanation:

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Does the equation 3(2x−1)+5=6(x+1) have one, none, or an infinite amount of solutions?

EleoNora [17]

Answer: No solutions

Step-by-step explanation: If you solve the problem all the way, you get 0 = 4 which is not valid so there is simply no solution

8 0

2 years ago

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Find the integration of (1-cos2x)/(1+cos2x)

slega [8]

Given:

The expression is:

$\dfrac{1-\cos 2x}{1+\cos 2x}$

To find:

The integration of the given expression.

Solution:

We need to find the integration of $\dfrac{1-\cos 2x}{1+\cos 2x}$ .

Let us consider,

$I=\int \dfrac{1-\cos 2x}{1+\cos 2x}dx$

$I=\int \dfrac{2\sin^2x}{2\cos^2x}dx$ $[\because 1+\cos 2x=2\cos^2x,1-\cos 2x=2\sin^2x]$

$I=\int \dfrac{\sin^2x}{\cos^2x}dx$

$I=\int \tan^2xdx$ $\left[\because \tan \theta =\dfrac{\sin \theta}{\cos \theta}\right]$

It can be written as:

$I=\int (\sec^2x-1)dx$ $[\because 1+\tan^2 \theta =\sec^2 \theta]$

$I=\int \sec^2xdx-\int 1dx$

$I=\tan x-x+C$

Therefore, the integration of $\dfrac{1-\cos 2x}{1+\cos 2x}$ is $I=\tan x-x+C$ .

8 0

2 years ago

A stick 1 meter long casts a shadow 1.5 meters long. A building casts a shadow 17 meters long. How tall is the building (to 2 de

vladimir2022 [97]

I’m not sure keep trying

5 0

3 years ago

How do the graph of f(x) and f−1(x) relate

Leno4ka [110]

Answer:

sasagutin ba yan

Step-by-step explanation:

parang hindi eh

4 0

2 years ago

How to find area of triangle

torisob [31]

Answer:

$\displaystyle A =\frac{B*H}{2}$

Step-by-step explanation:

To find the area of a triangle, we can use the formula of:

$\displaystyle A =\frac{B*H}{2}$

This formula comes from the area of a rectangle, because a triangle is half a rectangle.

3 0

2 years ago

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