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18 September, 13:04

Solve for x in degrees: sinx=cos (48) without a calculator

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  1. 18 September, 13:13
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    We are given with the mathematical expression sinx=cos (48) and is asked in the porblem to determine the value of variable x. In this case, we solve first cos 48 which is equal to - 0.64. to determine x, we use inverse sin, that is sin-1 (-0.64) = x; x = 42 degrees. x is equal also to 90-48 according to complementary postulate.
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