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Sin inverse {cos (Sin inverse root 3 by 2)} |
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Answer» Answer: pl. mark as brainliest Explanation: Consider an equilateral triangle with SIDES of length 2 , bisected to FORM two right angled triangles: enter IMAGE source here REMEMBERING that sin = opposite hypotenuse , we can see that: sin ( π 3 ) = √ 3 2 Since √ 3 2 > 0 and π 3 is in Q1, we can deduce: sin − 1 ( √ 3 2 ) = π 3 From the same diagram, remembering = adjacent hypotenuse , we can see that: cos ( π 3 ) = 1 2 So: cos ( sin − 1 ( √ 3 2 ) ) = cos ( π 3 ) = 1 2 |
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