@`JEET how do you know that area of triangles in the plane will cover all the positive real numbers.

i.e Do you have a proof that Range = R+

1 vote

If $A$ be the set of triangles in a plane and $R^{+}$ be the set of all positive real numbers, then the function $f\::\:A\rightarrow R^{+},$ defined by $f(x)=$ area of triangle $x,$ is

- one-one and into
- one-one and onto
- many-one and onto
- many-one and into

1 vote

0

@`JEET how do you know that area of triangles in the plane will cover all the positive real numbers.

i.e Do you have a proof that Range = R+