Question

help me solving this Question....

Answer 1

Answer:

a=-37/103, b=-15/103

Step-by-step explanation:

First of all rationalise the terms

$((3 + \sqrt{7} ) \div (3 - 4 \sqrt{7})) \times ((3 + 4 \sqrt{3} ) \div (3 + 4 \sqrt{7} ))$

=

$((3 + \sqrt{7} )(3 + 4 \sqrt{7 } )) \div (9 - 112)$

=

$((9 + 28 + 12 \sqrt{7} + 3 \sqrt{7} ) \div ( - 103)$

$( - 37 \103) + ( - 15 \103 ) \sqrt{7}$

=> a=-37/103

b=-15/103

Answer 2

Answer:

please some thanks

Step-by-step explanation:

A Lewis structure is a structural representation of a molecule where dots are used to show electron positions around the atoms and lines or dot pairs represent covalent bonds between atoms.