คำตอบ - Trigonometry
คำอธิบายทีละขั้นตอน
1. ขั้นตอน 165: ใช้ความสัมพันธ์ตรีโกณมิติ
Reflecting the number with respect to 360 degrees.
The period of trigonometric functions is 360 degrees.
Removing or simplifying the same numbers on the top and bottom of a fraction.
The tangent of an angle is equal to the sine of the angle divided by the cosine of the angle.
Computing the sine of a negative angle.
Computing the cosine of a negative angle.
Placing the minus sign in front of a fraction.
The tangent of an angle is equal to the sine of the angle divided by the cosine of the angle.
The tangent of an angle is equal to the sine of the angle divided by the cosine of the angle.
Computing the sine of 60 degrees.
Computing the cosine of 60 degrees.
Converting a fraction expression to multiplication by using the reciprocal of the denominator.
Multiplying two fractions together.
Multiplication can be done in any order, and the result remains the same.
Distributing a fraction over multiplication.
Distributing a fraction over multiplication.
Dividing the same numbers.
Distributing a fraction over multiplication.
Dividing the same numbers.
Multiplying a number by one, which does not change its value.
The fraction equals its numerator if its denominator is one.
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