Question

Hi huys plz answer this question. I will give you a 5 star rating and thanks and mark ur answer brainliest if u will give a proper and good answer. But only 8f the answer is neat and properly given...

Answer 1

Answer:

${a}^{2} + {b}^{2} = 100 \\ and.... \\ \\ ab = 48 \: \\ \\ so... \\ \\ \\ (a + b) {}^{2} - 2ab = 100 \\ \\ = >( a + b) {}^{2} = 100 - 2 \times 48 \\ \\ \\ = >( a + b) {}^{2} = 100 - 96 \\ \\ = > (a + b) {}^{2} = 4 \\ \\ = > a + b = \sqrt{4} = > 2$

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Answer 2

★ Given :

a² + b² = 100

ab = 48

★To find :

Value of a+b

★ Solution :

We know that,

${\pink{\boxed{(a+b)^2 = a^2 + b^2 + 2 ab }}}$

$by \: putting \: the\:values \\ \\ \\ (a+b)^2 = 100+ 2(48) \\ \\ \\ (a+b)^2 = 100+96 \\ \\ \\ (a+b)^2 = 196 \\ \\ \\ (a+b) = \sqrt{196} \\ \\ \\ (a+b) = \sqrt{13 \times 13} \\ \\ \\ {\purple{\boxed { (a+b) = 13}}}$