NDA2019MathematicsTrigonometric Ratios & IdentitiesActual
What is ( A 2 )- ( A 2 ) equal to?
Options
- AA
- BA
- C2 ~A
- D2 ~A
Correct answer
D. 2 ~A
Step-by-step solution
aligned & A 2 - A 2 & = A 2 A 2 - A 2 A 2 & = ^2 A 2 - ^2 A 2 A 2 A 2 2 2 & =2 A A =2 A aligned