Question

i) Difference between WiFi and LiFi.
ii) secA+tanA - CosA+SinA​

Answer 1

Answer:

Wi-Fi and LiFi are used to send and receive data wirelessly. Wi-Fi uses routers and radio frequencyfrequencyand radio frequency whereas LiFi uses a LED bulbs and light signals to transfer and receive data. Wi-Fi transmits data using radio waves using Wi-Fi router. LiFi transmits data using light signals using LED bulbs.

Answer 2

WiFi and LiFi used to send and receive data wirelessly. WiFi uses Routers and Radio Frequency whereas LiFi uses LED bulbs and Light signals to transfer and receive data. ... WiFi transmits data using radio waves using WiFi router. LiFi transmits data using light signals using LED bulbs