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Euclidean Geometry. (Grade 11-12). #mathematics #euclideangeometry

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

One Thousand and One | Numberblocks COURSE - Level 5, Blue (S4 E29)

x² = 4 VS x = √16, Value of x ?

Q) Show that a function 𝑓:𝑅_+→𝐴⊂𝑁, defined as 𝑓(𝑥)=4𝑥^2+12𝑥+15 is one-one. Find gset 𝐴