How does the unit circle allow the trigonometric functions to be defined for all real numbers instead of just for acute angles?
1 answer:
Every point in the unit circle is identified either by its coordinates or by the angle it forms with the x-axis, .
The trigonometric functions associate with every angle and the correspondant coordinates the two values
This procedure can be done for every angle , so you don't have to work with acute angles only.
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Step-by-step explanation:
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<span>(4y-3)²=72
4y-3 = </span>√72 or 4y-3 = - √72
y= (3+√72) /4 or y= (3 - √72) /4