...functions known as secant(x) =1/cos(x), cosecant(x)=1/sin(x) and cotangent(x) = 1/tan(x). To avoid errors in the use of the inverse trigonometric functions, one must be careful and set the angle
90=15(2y=2) If you mean this to be a logic statement, it will always be false (0). You might be getting an error because you need parentheses around the whole thing. If you mean the 2y=2 to be 2y 2 ...
Calculation errors Sin(90) = .89 when it should be one also 8^1/3 = 2.6666667 The sine of 90 radians is about 0.89, as your calculator shows. If you want the sine of 90 degrees, change the angular ...
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