All Answers 358512 Answers

It is a complex number.

The answer is 8i.

x^2=-64

X=sqr-64

x=sqr64 x i

x=8i

It is 6.

6x6x6=216

By what? Chuck Norris is infinite...

It would not take any: they would beat the room for being black

-Gib

Thank you for the thumbs up. 

Thanks reinout,

Reinout is right.  I think mine is ok except the hole is in the wrong place.

therefore the range and domain are not correct.

Reinout could you please give AllSmilesAlways the correct answer.

I have had enough for the night.  It is 2am.

See you much later in the day. 

http://web2.0calc.com/questions/tgx-cosx-1-sinx_1

$$tanx+\frac{cosx}{1+sinx}\\\\
=\frac{sinx}{cosx}+\frac{cosx}{1+sinx}\\\\
=\frac{sinx(1+sinx)}{cosx(1+sinx)}+\frac{(cosx)^2}{(1+sinx)cosx}\\\\
=\frac{sinx+sin^2x+cos^2x}{cosx(1+sinx)}\\\\
=\frac{sinx+1}{cosx(1+sinx)}\\\\
=\frac{1}{cosx}\\\\
=secx$$

Does tgx stand for tangent of x?

And Alexander. Behave yourself!

its s*x

Sorry Melody, you may want to adjust some things;

$$5x-6 \neq 0$$

$$x \neq \frac{6}{5}$$

and

$$(2x+1)(5x-6) = 10x^2+5x-12x-6$$

which is

$$10x^2-7x-6$$

but since $$-20x^2+14x+6 = -2(10x^2-7x-6)$$

The rest does work.

Nevertheless the hole is at x= 6/5

Hi All SmilesAlways,

Since you are dividing by 5x-6,

 $$5x-5\ne 0 \rightarrow x\ne 1$$

$$f/g=\frac{-20x^2+14x+12}{5x-6}\\\\
f/g=\frac{-2(10x^2+7x+6)}{5x-6}\\\\
f/g=\frac{-2(2x+1)(5x-6)}{5x-6}\\\\
f/g=-2(2x+1)$$

This is a line with a hole at (1,-6)

Domain All real x where x is not equal to 1

Range: All real y where y is not equal to -6

I am very tired so you need to check my working. 

A chord is an interval that touches goes from one point on the circumference of a circle to another point on the circumference of the circle.

just as our guest showed in the diagram. (The angle isn't important)

 $$SA=\pi r^2 + \pi r^2 + 2\pi rh$$

you can put the numbers in

$${\mathtt{2}}{\mathtt{\,\times\,}}{{\mathtt{10}}}^{-{\mathtt{9}}} = {\frac{\left({{\mathtt{6.67}}}^{{\mathtt{10}}}{\mathtt{\,-\,}}{\mathtt{11}}\right){\mathtt{\,\times\,}}{\mathtt{7.1}}{\mathtt{\,\times\,}}{\mathtt{7.7}}}{{{\mathtt{R}}}^{{\mathtt{2}}}}} \Rightarrow \left\{ \begin{array}{l}\end{array} \right\}$$

$${{\mathtt{R}}}^{{\mathtt{2}}} = {\frac{\left({{\mathtt{6.67}}}^{{\mathtt{10}}}{\mathtt{\,-\,}}{\mathtt{11}}\right){\mathtt{\,\times\,}}{\mathtt{7.1}}{\mathtt{\,\times\,}}{\mathtt{7.7}}}{\left({\mathtt{2}}{\mathtt{\,\times\,}}{{\mathtt{10}}}^{-{\mathtt{9}}}\right)}} \Rightarrow \left\{ \begin{array}{l}\end{array} \right\}$$

you can finish it on you hand calculator.

$$\frac{-M}{3}-7$$

$${\frac{{\mathtt{499.99}}}{{\mathtt{0.2}}}} = {\mathtt{2\,499.95}}$$

The minus is raised to the neg 3 as well! but -1*-1*-1=-1 so it doesn't make any difference to the answer.

Indices 7/5/2014

Do they explain me root and power with properties in negative numbers? Example, when we have to make the power of a numer...

Take a look at this thread that I just put together for you. 

Echa un vistazo a este hilo que acabo de poner juntos para ti.

Powers of 0 and 1 - Exponents of 0and 1

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

I the square root sign is written into the question then the answer is just +10

If you put the square root in as a part of your working then the answer is $$\pm 10$$

196=14*14=2*7*2*7 so only muliples of 2 or 7 could go into 196 

1*196

2*98

4*49

7*28

14*14

 and I think that is it!

factors are 2,4,7,14,28,29,98,

(I normally include 1 and 196 as well but some of the other mathematicians don't maybe it depends on what country you are in - I don't know!)