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

Q) Show that a function f: R → R defined by f(x) = 2𝑥/(1+𝑥^2 ) is neither one-one nor onto.

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

Quick Math - The 7 Times Tables | Learn to Count for Kids | Number Cartoon | Numberblocks

Q) Check whether :Z×Z→Z×Z (where Z is the set of integers) defined as f(𝑥,y)=(2y,3𝑥) is injective

Q) Show that the function 𝑓:𝑅→𝑅 defined by 𝑓(𝑥)=4𝑥^3−5,∀𝑥∈𝑅 is one-one and onto

90% FAIL! Percentage Square Root Trap I Percentage ka Square Root I Math Wali Class #mathstricks

I never learned this square root trick in school !! #math #mathtricks #trending