# Math Help - single solution?

1. ## single solution?

For any values of the real number a is equivalent to a single solution?

2. Originally Posted by dhiab
For any values of the real number a is equivalent to a single solution?
Hi

Note that $1+\sin^2(ax) \geq 1$ and $\cos x \leq 1$

The only possibility to get the equation correct is therefore

$1+\sin^2(ax) = \cos x = 1$ that I let you solve

3. Originally Posted by running-gag
Hi

Note that $1+\sin^2(ax) \geq 1$ and $\cos x \leq 1$

The only possibility to get the equation correct is therefore

$1+\sin^2(ax) = \cos x = 1$ that I let you solve
How do you know that $1+\sin^2(ax) = \cos x$ ??

4. Originally Posted by Rachel.F
How do you know that $1+\sin^2(ax) = \cos x$ ??
Well this is the equation to be solved