NDA2022MathematicsTrigonometric Ratios & IdentitiesActual
If + =1- , where then which of the following is one of the values of ( + ) ?
Options
- A6
- B4
- C3
- D2
Correct answer
B. 4
Step-by-step solution
aligned & + =1- & + 1- =1 & ( + )= 4 & + = 4 aligned