5 - [96 ÷ 4 of 3 - (16 - 55 ÷ 5)]
371 0 64cce6aa9e9013486a97b100If $${1\over 4.263}=0.2346$$, find the value of $${1\over0.0004263}.$$
354 0 64cce4c99e9013486a97aa26The value of $$5-{8+2\sqrt{15} \over4}-{{1}\over8+2\sqrt{15}}$$ is equal to:
423 0 64cce05f9e9013486a979541