find the values of the trigonometric functions . find that, cot(-15 pi/4)
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Ex 3.2, 10 Find the value of the trigonometric function cot ("– " 15"π" /4) cot ((−15 )/4) = – cot ((15 )/4) = – cot ("3" 3/4 "π" ) = – cot (" 4π ...
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