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

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

(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:

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:

(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:

tg 0 = ?

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

cos 0 degrees = ?

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

cos 0 = ?

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

sin 0 degrees = ?

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