Find the number of integral values of satisfying the equation where is G.I.F

MATHEMATICS · Subjective · A Level · Mathematics · Algebra and Functions · Algebra and Functions

Problem

Find the number of integral values of

x

satisfying the equation

\text{sgn}\left(\left[\frac{15}{1+2x^2}\right]\right) = [1+\{2x\}]

where

[\cdot]

is G.I.F. and

\{\cdot\}

— F.P.F.