diketahui fungsi g : × → 2 ײ + 4. tentukan nilai a, jika g (a) = 46
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[tex]g(x) = {2x}^{2} + 4[/tex]
[tex]g(a) = {2a}^{2} + 4 = 46[/tex]
[tex] > > > > > {2a}^{2} = 46 - 4[/tex]
[tex] > > > > > {2a}^{2} = 42[/tex]
[tex] > > > > > {a}^{2} = \frac{42}{2} [/tex]
[tex] > > > > > {a}^{2} = 21[/tex]
[tex]> > > > > a = \sqrt{21} [/tex]
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