1.

Expression of x+y + z = 1 in the form of x cos alpha + y cos beta + z cos gamma = p is ..........

Answer»

` x + y + z=1`
`(x)/(2sqrt(3)) + (y)/(2sqrt(3)) + (x)/(2sqrt(3))= (1)/(SQRT(3))`
`(x)/(sqrt(3)) + (y)/(sqrt(3)) + (z)/(sqrt(3)) = 1`
`(x)/(sqrt(3)) + (y)/(sqrt(3)) + (z)/(sqrt(3)) = (1)/(sqrt(3))`

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