## (a – b)^2 = ? (formula and example) [square of binomial] [binomial expansion]

Transcript: Slide 02: a minus b squared is a squared minus two a b plus b squared. Slide 03: Example:

Continue reading

## a^2 + 2ab + b^2 = ? (formula and example) [factoring a trinomial]

Transcript: Slide 02: a squared plus two a b plus b squared is a plus b squared. Slide 03: Example:

Continue reading

## (a + b)^2 = ? (formula and example) [square of binomial] [binomial expansion]

Transcript: Slide 02: a plus b squared is a squared plus two a b plus b squared. Slide 03: Example:

Continue reading

## tg 0 = ?

What is the tangent of zero? The tangent of zero is zero.

Continue reading

## cos 0 degrees = ?

What is the cosine of zero degrees? The cosine of zero degrees is one.

Continue reading

## cos 0 = ?

What is the cosine of zero? The cosine of zero is one.

Continue reading

## sin 0 degrees = ?

What is the sine of zero degrees? Sine of zero degrees is zero.

Continue reading

## sin 0 = ?

What is the sine of zero? Sine of zero is zero.

Continue reading

## Learn JavaScript. How to display an array, in the current window, in a div?

Here’s the source code: <div id = "div_array"></div> <script> var letters_array = ['a', 'b', 'c', 'd']; var div_array_value = '';

Continue reading

## Learn JavaScript. How to display a message in a pop up window?

Here’s the source code: <script>     alert ("It works!"); </script> alert will open a pop-up window, and it will display the

Continue reading