Sin(x)=1/7. what is x?
2 answers:
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Any number inside the modulus sign becomes positive. This means and so we have,
Solving these gives us
However if we check the second solution in the original equation we obtain . This is false and so
can't be a solution.
Therefore the only solution is .
(Note: I'm not sure why the second solution didn't work but when there's a modulus sign involved it always pays to check your final answers to be sure. I'll have a think about it but in case you find out before I do, I'd be interested to know in the comments.)
The equivalent equation is x - 4 = 0.
<h2>Linear system</h2>It is a system of an equation in which the highest power of the variable is always 1. A one-dimension figure that has no width. It is a combination of infinite points side by side.
<h3>Simplification</h3>Simplification is to make something easier to do or understand and to make something less complicated.
Given
The expression is .
The equivalent equation.
<h3>How to find the equivalent equation.</h3>The expression is .
On simplifying. we get
The equivalent equation is x - 4 = 0.
More about the linear system link is given below.