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Which of the following is the correct identity for sin(2A)?
Practice Questions
Q1
Which of the following is the correct identity for sin(2A)?
2sinAcosA
sin^2A + cos^2A
sinA + cosA
sinAcosA
Questions & Step-by-Step Solutions
Which of the following is the correct identity for sin(2A)?
Steps
Concepts
Step 1: Understand that 'sin(2A)' means the sine of double the angle A.
Step 2: Learn about the double angle formulas in trigonometry, which help us express trigonometric functions of double angles.
Step 3: The specific formula for sine of double an angle is 'sin(2A) = 2sinAcosA'.
Step 4: This means to find sin(2A), you take the sine of angle A, multiply it by the cosine of angle A, and then multiply the result by 2.
No concepts available.
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