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Suppose cos a = 4/5 where 0 < a < 90°. Find the value
of sin (2a).
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Pls! does anybody know a shortcut for answering these types of questions in the future?
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9.4.34 question to estimate the height of a stone figure, an observer holds a small square up to her eyes and walks backward from the figure. she stops when the bottom of the figure aligns with the bottom edge of the square, and when the top of the figure aligns with the top edge of the square. her eye level is 1.811.81 m from the ground. she is 3.703.70 m from the figure. what is the height of the figure to the nearest hundredth of a meter?
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Suppose cos a = 4/5 where 0 < a < 90°. Find the value
of sin (2a)....
of sin (2a)....
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