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AP EAMCET201923 Apr 2019Morning ShiftMathematicsTrigonometric Ratios & IdentitiesActual

If ( A- B=x ) and ( A- B=y ), then ( (A-B)= )

Options

  1. A( x y x+y )
  2. B( x y x-y )
  3. C( x-y x y )
  4. D( y-x x y )

Correct answer

D. ( y-x x y )

Step-by-step solution

Since, ( A- B=x ) ( 1 A - 1 B =x B- A A B =x ) ( A- B=y ) (given) So, ( A B=- y x ) ( (A-B)= A B+1 B- A = - y x +1 -y = y-x x y ) Hence, option (d) is correct.

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