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Show that 4sin27^0=(5+sqrt(5))^(1/2)+(3-...

Show that `4sin27^0=(5+sqrt(5))^(1/2)+(3-sqrt(5))^(1/2)`

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CENGAGE PUBLICATION-TRIGONOMETRIC FUNCTIONS-All Questions
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  3. Show that 4sin27^0=(5+sqrt(5))^(1/2)+(3-sqrt(5))^(1/2)

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