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)/

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

Do you know these numbers? 🔢 Let's learn to count #forkids

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Most Satisfying Way to Learn Sum of n Odd Numbers I Visual Proof I Math Wali Class #numbersystem