🤯 Solve Square Root Questions in Seconds by Observation! Aptitude Booster Trick for SSC and RRB #yt

Q) Let A = R – {5} and B = R – {1}. Consider the function f: A → B, defined by f(x) = (𝑥−3)/

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Q) Show that 𝑓:𝑅_+→[−5,∞) given by 𝑓(𝑥)=4𝑥^2+4𝑥−5 is both one-one and onto where 𝑅_+=[0,∞).

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बच्चा HARD CALCULATION समझ के छोड़ आएगा SSC 2026 MATHS BY ABHINAY SHARMA