Question

give me answer correctly​

Answer 1

$\sf{\dfrac {\sqrt{1.96}+\sqrt {2.89}-\sqrt{2.25}}{\sqrt{0.00000256}}}\\\\\\\sf{=\dfrac {1.4+1.7-1.5}{0.0016}}\\\\\\\sf{=\dfrac {1.6}{0.0016}}\\\\\\=\sf{\underline {\underline {1000}}}$