Question

plz tell me the answer of these 2 questions​

Answer 1

Hi there

Here is your answer

Answer 2

Answer:

Ans 14.)

$\frac{4}{ 2 + \sqrt{3} } \times \frac{2 - \sqrt{3} }{2 - \sqrt{3} } \\ = > \frac{4(2 - \sqrt{3)} }{(2)^{2} - ( \sqrt{3})^{2} } \\ = > \frac{8 - 4 \sqrt{3} }{2 - 3} \\ = > \frac{8 - 4 \sqrt{3} }{ - 1} \\ = > - (8 - 4 \sqrt{3} )$

Ans.15.) apply ID, (a+b)^3