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NDA2021MathematicsTrigonometric Ratios & IdentitiesActual

What is the value of the following? ( 24^ + 66^ ) ( 24^ - 66^ )

Options

  1. A-1
  2. B0
  3. C1
  4. 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

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