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Let `f(x) =1/2-tan((pix)/2) `, -1 |
Answer» `P:x in (-1,1)` `g(x)=sqrt(3+4x-4x^2)` `3+4x-4x^2>=0` `4x^2-4x-3<=0` `(2x+1)(2x-3)<=0` `x in [-1/2,3/2]` `x in [-1/2,1)` Option 3 is correct. |
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