Question

(1+ tan theta ) ( 1+ tan phie ) = 2 , then theta + phie =​

Answer 1

Answer:

45 degree

Step-by-step explanation:

(1 + tan theta) ( 1 + tan phi ) = 2

expanding the above expression

tan theta + tan phi + tan theta * tan phi = 1

dividing by ( 1 - tan theta * tan phi )

tan ( theta + phi ) = 1

theta + phi = tan inverse ( 1 ) = 45 degree