If $x, y \in [0,10]$ then what is the number of solutions $(x, y)$ of the inequation $3^{sec^2x - 1} \sqrt{9y^2-6y+2} \le 1$

Question

How do we solve the following question?

If $x, y \in [0,10]$ then what is the number of solutions $(x, y)$ of the >inequation $3^{sec^2x - 1} \sqrt{9y^2-6y+2} \le 1$

Answer 1

i would use that $$(\sec(x)^2-1)\ln(3)+\frac{1}{2}\ln(9y^2-6y+2)\le 0$$ after taking the logarithm on both sides

Answer 2

Hint:

$\sec^2x-1=\tan^2x\ge0$ for all real $x$

$\implies 3^{\sec^2x-1}\ge3^0$

and $(3y-1)^2+1\ge1$ for real $y$

Answer 3

HINT.-We have $$\sqrt{9y^2-6y+2}\ge1\text{ and just in }x=\frac13\text{ is equal to 1}$$

$$3^{\tan^2(x)}\ge1\text{ and is equal to 1 when } x=k\pi;\space k\in \mathbb Z$$