NDA2023MathematicsTrigonometric Ratios & IdentitiesActual
Let x+ y= 3 ( y- x) ; x+y= 2 , 0 x, y 2 What is a value of 3 x+ 3 y ?
Options
- A-1
- B0
- C1
- D3
Correct answer
B. 0
Step-by-step solution
aligned & Since, 3 x + 3 y & = (3 5 12 )+ (3 12 ) & =- ( / 4)+ ( / 4)=0 aligned