Math, asked by ninth, 1 year ago

solve the following questiom of class 9 (√5+√2)^2

Answers

Answered by DaIncredible
1
Hey there,
Here is the answer you were looking for:
 {( \sqrt{5} +  \sqrt{2}  })^{2}  \\  \\  using \: the \: formula \\  {(a + b)}^{2}  =  {(a)}^{2}  +  {(b)}^{2}  + 2ab \\  \\  =  {( \sqrt{5} )}^{2}  +  {( \sqrt{2}) }^{2}  + 2 \times  \sqrt{5}  \times  \sqrt{2}  \\  \\ since \:  {( \sqrt{a} )}^{2}  = a \\  \\  = 5 + 2 + 2 \sqrt{10}  \\  \\  = 7 + 2 \sqrt{10}

Hope this helps!!!

@Mahak24

Thanks...
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Answered by 8539935298
1
(√5+√2)^2=√5^2+√2^2+2×√5×√2

5+2+2√10=7+2√10 and
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