NDA2018MathematicsTrigonometric Ratios & IdentitiesActual
If + + =0 , where 0 2 , 0 2 , 0 2 , then what is the value of + + ?
Options
- A0
- B3
- C5 2 2
- D3 2 2
Correct answer
B. 3
Step-by-step solution
+ + =0...(1) Given, 0 2 , 0 2 , 0 2 . (1) is satisfied when = 2 , = 2 and = 2 . aligned & + + = 2 + 2 + 2 & =1+1+1=3 aligned