Question

what is optics ???
explain !! ​

Answer 1

Answer:

Optics are the way something looks to an outsider, especially concerning political actions.

Answer 2

Answer:

The least common multiple 120 is a product of common & odd prime factors between the integers which is divisible by each one an integer of this same group. The step by step work for LCM of 12, 15 and 40 may useful to understand how to find LCM for two or three numbers.