Determined mean sine of the product of -2/9×1/7 enter plus for a positive or subtract for negative
To find the mean sine of the product of -2/9 and 1/7, we first need to calculate the product:
(-2/9) × (1/7) = -2/63
Since the sine of the product (-2/63) is always positive, we enter "plus" as the answer.
To find the sine of the product of -2/9 and 1/7, follow these steps:
1. Calculate the product of -2/9 × 1/7.
To multiply fractions, multiply the numerators and multiply the denominators:
(-2/9) × (1/7) = (-2 × 1) / (9 × 7) = -2/63.
2. Find the sine of -2/63.
The sine function of an angle is the ratio of the length of the side opposite the angle to the length of the hypotenuse in a right triangle. However, since we are dealing with a fraction, we cannot construct a triangle.
But, we can use a calculator to find the sine of -2/63.
Enter "-2/63" into a scientific calculator or use the sine function to find the value.
The result of the sine function for -2/63 will be a decimal value.
3. Determine if the result is positive (+) or negative (-).
If the value obtained in step 2 is positive, then enter plus (+) as the answer.
If the value obtained in step 2 is negative, then enter subtract (-) as the answer.