If a - b -6 and a 2- b 2-30- then the value of ab is equal toA- -3B- -6C- -2D- -1

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Formula for x^2+y^2

If a - b =6 a...

Question

If $(a - b) = 6$ and $a^{2} + b^{2} = 30$ , then the value of ab is equal to ____.

-2

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-3

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-6

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-1

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If $(a + b) = 6$ , and $a b = 2$ , then the value of $\frac{1}{a^{2}} + \frac{1}{b^{2}}$ is equal to

(a + b) = 6

a b = 2

\frac{1}{a^{2}} + \frac{1}{b^{2}}

| \to A \times \to B | = \sqrt{3} \to A . \to B,

| \to A + \to B |

If $| \to A \times \to B |$ = $\sqrt{3} \to A . \to B$ , then the value of $| \to A + \to B |$ is

If | $\to A$ $\times$ $\to B$ | = $\sqrt{3} A . B$ , then the value of | $\to A$ + $\to B$ | is:

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