Maths Tricks You Must Know | Fastest Calculation Methods

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

Class 9 Maths Hidden Secret 😱 | Star Questions Important or Not? | Ganita Manjari Update

Introduction Speech Example

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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