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Question 6
In die diagram is die grafieke van $f(x) = ext{sin} \, (x - 1)$ en $g(x) = ext{cos} \, 2x$ vir die interval $x \, ext{e} \, [-90^{ ext{o}}; 360^{ ext{o}}]$ gesket... show full transcript
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Answer
Gegee dat , kan ons die volgende stappe gebruik om die waardes te bepaal:
egin{align*}
PQ &= ext{cos} , 2x - ext{sin} , (x - 1)
&= 1 - 2 ext{sin} ,(x - 1)\text{sin}, (x - 1) + 1
&= -2 ext{sin}^2 ,(x - 1) + 2.
ext{s} , = \frac{b}{2a}
ext{sin} , x &= \frac{1}{4}
ext{sin} , x = -1 , ext{of} , x = 194,48^{ ext{o}} , ext{of} , 345,52^{ ext{o}}.
ext{Deriving values of } x, \text{ we have: } 194,48^{ ext{o}} \text{ and } 345,52^{ ext{o}}.
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