Using the half angle formula for tangent to evaluate from a triangle

What is the result of subtracting a cosine value of -3/5 and dividing by a sine value of -4/5?

• 3/4

• -3/4

• 4/3

• -4/3

Which method is suggested for simplifying fractions in the numerator and denominator?

• Adding fractions

• Multiplying by a common factor

• Subtracting fractions

• Dividing by a common factor

What is the alternative method to eliminating fractions mentioned in the video?

• Using a calculator

• Combining fractions

• Using decimals

• Cross-multiplying

When dividing a fraction by another fraction, what is the recommended approach?

• Multiply the fractions

• Use fraction operations

• Add the fractions

• Avoid fraction operations

What is the result of dividing 8/5 by -4/5?

• 1

• -1

• 2

• -2