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AP EAMCET202021 Sep 2020Evening ShiftMathematicsTrigonometric EquationsActual

If ( (x)+ ^2(x)=1 ), then ( ^2(x)+ ^4(x) ) is equal to

Options

  1. A0
  2. B1
  3. C-1
  4. D2

Correct answer

B. 1

Step-by-step solution

It is given that, ( aligned x+ ^2 x & =1 x= ^2 x ^2 x+ ^4 x & = x+ ^2 x=1 aligned ) Hence, option (b) is correct.

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