Evaluate the following :
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Step-by-step explanation:
sin 47° = sin(90°-43°)
= cos 43°
(sin 60°)² = (√3/2)² = 3/4
SUBSTITUTING THE VALUES,,
(1/1)² + 1² - 3/4
2 - 3/4
5/4
hope it helps... cheers
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