Find the Value of sin97?
Sin(97) = Sin (60 + 37)
=Sin(60)Cos(37) + Sin(37)Cos(60)
=(√3/2)(0.8) + (0.6)(1/2)
=0.4√3 + 0.3
Find the Value of sin97?
Introduction:
Trigonometric functions are widely used in mathematics, physics, engineering, and other fields that involve geometric calculations. One of the most common trigonometric functions is the sine function, which is denoted as sin(x). In this response, we will find the value of sin(97) using different methods.
Method 1: Using a calculator
One of the easiest ways to find the value of sin(97) is by using a scientific calculator. Here are the steps to follow:
1. Turn on your calculator and make sure it is in degree mode.
2. Enter 97 on the calculator.
3. Press the sin button.
4. The calculator will display the value of sin(97), which is approximately 0.8480480961.
Method 2: Using the unit circle
The unit circle is a powerful tool for finding the values of trigonometric functions. Here are the steps to find the value of sin(97) using the unit circle:
1. Draw a unit circle on a piece of paper.
2. Mark the point where the angle 97 degrees intersects the circle.
3. Draw a line from the origin to the point on the circle.
4. The length of the line is equal to the sine of the angle.
5. Measure the length of the line using a ruler or a protractor.
6. The value of sin(97) is equal to the length of the line on the unit circle, which is approximately 0.8480480961.
Method 3: Using the sum and difference formula
The sum and difference formula for sine can be used to find the value of sin(97) in terms of known values of sine and cosine. Here are the steps to follow:
1. Write sin(97) as sin(45+52).
2. Use the sum formula for sine: sin(a+b) = sin(a)cos(b) + cos(a)sin(b).
3. Substitute a = 45 and b = 52: sin(45+52) = sin(45)cos(52) + cos(45)sin(52).
4. Use the fact that sin(45) = cos(45) = 1/sqrt(2) and sin(52) and cos(52) can be found using a calculator.
5. Simplify the expression and solve for sin(97): sin(97) ≈ 0.8480480961.
Conclusion:
In this response, we have shown three different methods for finding the value of sin(97). The first method involves using a calculator, the second method uses the unit circle, and the third method uses the sum and difference formula for sine. Regardless of the method used, the value of sin(97) is approximately 0.8480480961.