Question

Write the direction-cosines of the line joining
the points (1,0,0) and (0,1,1).​

Answer 1

HOLA MATE❤❤

Here is your answer ⤵

The direction ratios of the line joining these points are (x2−x1),(y2−y1),(z2−z1)(x2−x1),(y2−y1),(z2−z1)

(i.e) (0−1),(1−0),(1−0)(0−1),(1−0),(1−0)

⇒(−1,1,1)⇒(−1,1,1)

Step 2:

Its direction cosines are −112+12+12−−−−−−−−√,112+12+12−−−−−−−−√,112+12+12−−−−−−−−√−112+12+12,112+12+12,112+12+12

⇒−13–√,13–√,13–√