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Noun. 1. tan-a browning of the skin resulting from exposure to the rays of the sun. sunburn, suntan, burn. hyperpigmentation-unusual darkening of the skin.
We need to use the inverse function for tan, tan-1, to find the angle. This function is on the same key on the calculator as the tan function (shift tan). We use the following sequence of commands: shift - tan-1 0.75 = 37. Try the following on your calculator to see the difference between tan and tan-1: angle â ratio ratio â angle.