Question

if 3^a *5^b * 7^c , find the value of 7a-2b+3c
with the working

Answer 1

Step-by-step explanation:

math](a^2+b^2+c^2)(1^2+2^2+3^2)\geq(a+2b+3c)^2\Rightarrow a^2+b^2+c^2\geq\frac{16}{14}[/math