NDA2020MathematicsTrigonometric Ratios & IdentitiesActual
Paragraph: Read the following information and answer Let t_n= ^n + ^n . Question: What is t₁^2-t₂ equal to?
Options
- A2
- B2
- C2
- D2
Correct answer
B. 2
Step-by-step solution
aligned & t₁^2-t₂=( + )^2- ( ^2 + ^2 ) = & ^2 + ^2 +2 - ( ^2 + ^2 ) = & 1+ 2 -1= 2 aligned