What is the value of -a - b- -a - b-a-2-b-2-2ab-a-2-b-2-a-2-b-2-2ab-a-2-b-2-

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Operations on Rational and Irrational numbers

What is the v...

Question

What is the value of (a + b) (a – b)?

$a^{2} + b^{2} - 2 a b$

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$a^{2} + b^{2} + 2 a b$

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$a^{2} + b^{2}$

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$a^{2} - b^{2}$

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Similar questions

\sin (α + β) = \frac{2 a b}{a^{2} + b^{2}}

\cos (α + β) = \frac{b^{2} - a^{2}}{b^{2} + a^{2}}

\sin α + \sin β = a and \cos α + \cos β = b

\sin (α + β) = \frac{2 a b}{a^{2} + b^{2}}

\cos (α - β) = \frac{a^{2} + b^{2} - 2}{2}

$The product (a + b) (a - b) (a^{2} - a b + b^{2}) (a^{2} + a b + b^{2})$ is equal to

\frac{x}{a} + \frac{y}{b} = 1 and \frac{x}{a} - \frac{y}{b} = 1 is \frac{2 a b}{a^{2} - b^{2}}

Question 84 (ix)

Simplify

$(a - b) (a^{2} + b^{2} + a b) - (a + b) (a^{2} + b^{2} - a b)$

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