The rang of an inverse function is the domain of the normal function
So you just gotta find the domain of that which is x is greater than or equal to 0
<h2>Just some examples...</h2>
2z+4=12
2(4)+4=12
<em>8+4=12</em>
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5z*2=40
5(4)*2=40
<em>20*2=40</em>
<h2 />
<h3>
Answer: Choice H) 2</h3>
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Explanation:
Recall that the pythagorean trig identity is 
If we were to isolate sine, then,

We don't have to worry about the plus minus because sine is positive when 0 < x < pi/2.
Through similar calculations,
Cosine is also positive in this quadrant.
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So,

Therefore,

is an identity as long as 0 < x < pi/2