Bantuan nya dong yg tau cara nya

[tex] \sqrt{0.04 \times 0.4 \times a} = 0.4 \times 0.04 \times \sqrt{b} \\ 0.04 \times 0.4 \times a = {(0.4 \times 0.04 \times \sqrt{b} )}^{2} \\ a = 0.4 \times 0.04 \times b \\ \frac{a}{b} = \frac{16}{1000} = 0.016[/tex]