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AP EAMCET20225 Jul 2022Morning ShiftMathematicsTrigonometric Ratios & IdentitiesActual

^2 2 3 + ^2 5 6 - ^2 3 4 =

Options

  1. A0
  2. B1 / 2
  3. C1
  4. D1 / 3

Correct answer

B. 1 / 2

Step-by-step solution

Here, ^2 ( 2 3 )+ ^2 ( 5 6 )- ^2 ( 3 4 )= ^2 ( - 3 )+ ^2 ( - 6 )- ^2 ( - 4 )= ^2 ( 3 )+ (- ( 6 ) )^2- (- 4 )^2 aligned & = ( 3 2 )^2+ ( - 3 2 )^2-(-1)^2 & = 3 4 + 3 4 -1= 6 4 -1= 1 2 . aligned

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