NDA2021MathematicsTrigonometric Ratios & IdentitiesActual
What is the value of the following? ( 24^ + 66^ ) ( 24^ - 66^ )
Options
- A-1
- B0
- C1
- D2
Correct answer
B. 0
Step-by-step solution
aligned & ( 24^ + 66^ ) ( 24^ - 66^ ) & = ^2 24^ - ^2 66^ aligned aligned & = ^2 24^ - ^2 (90^ -24^ ) & = ^2 24^ - ^2 24^ =0 aligned