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Prove this identify : 2 cos^2 (45°-A ) = 1 +sin 2 A
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Television sizes are based on the length of the diagonal of the television's rectangular screen. so, for example, a 70-inch television is a television having a diagonal screen length of 70 inches. if a 70 inch television's diagonal forms a 29°angle with the base of the screen, what is the vertical height (1) of the screen to the nearest inch? 70 inhin
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What function has a range {yly< 5}? question on picture above^
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Prove this identify : 2 cos^2 (45°-A ) = 1 +sin 2 A...
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