Question

प्रूफ दैट साइन थीटा * साइन माइनस थीटा प्लस कोस थीटा बाय कौस माइनस थीटा इक्वल टू साइन थीटा कोस थीटा​

Answer 1

Answer:

Merkhet could track the alignment of stars. It was a horizontal bar, carved from bone or wood, with a line attached to it. Two Merkhets were needed to read the time. ... Egyptians were observing the certain stars, and once they aligned with Merkhets, they were able to determine the time.