MHT CET202013 Oct 2020Evening ShiftMathematicsTrigonometric Ratios & IdentitiesActual
If x+ y=- , x+ y=- , then ( x+y 2 )=
Options
- A-
- B-
Correct answer
B. -
Step-by-step solution
Given x+ y=- and x+ y=- 2 ( x+y 2 ) ( x-y 2 )=- ...(1) and 2 ( x+y 2 ) ( x-y 2 )=- ...(2) Divided equation (1) by equation (2) ( x+y 2 )=