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Simplify the following trigonometric expression as much as possible: cos B + sin B tan B Select the correct answer:. sec B cos B sin B tan B. 1. 2. 3. Use an addition or subtraction formula to find the exact value of the expression: {image} Select the correct answer:. {image}
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Simplify the following trigonometric expression as much as possible: cos B + sin B tan BSelect the correct answer: • sec B • cos B • sin B • tan B
1. 2. 3. Use an addition or subtraction formula to find the exact value of the expression: {image} Select the correct answer: • {image} • {image} • {image}
1. 2. 3. 4. Use an addition or subtraction formula to write the expression as a trigonometric function of one number: {image} . Select the correct answer: • {image} • {image} • {image} • {image}
1. 2. 3. Find sin 2x, cos 2x, and tan 2x from the given information: {image} Select the correct answer: • {image} • {image} • {image}
1. 2. 3. Write the following sum as a product: {image} Select the correct answer: • {image} • {image} • {image}
1. 2. 3. 4. Find all solutions of the following equation: {image} Select the correct answer, where k is any integer: • {image} • {image} • {image} • {image}
1. 2. 3. 4. Use an addition or subtraction formula to simplify the following equation. Then find all the solutions in the interval {image} sin 4 x cos 3 x - cos 4 x sin 3 x = 0 Select the correct answer: • {image} • {image} • {image} • {image}
Find the indicated power using DeMoivre’s Theorem. ( 1 - i ) 24 Select the correct answer: • 4,096 • -4,096 • -4,096 i
1. 2. 3. 4. u = i + j, v = i - j, find 7 u - 2 v. Choose the correct answer from the following : • {image} • {image} • {image} • {image}
The forces F1, F2, ..., Fn acting at the same point P are said to be in equilibrium if the resultant force is zero, that is, if F1 + F2 + ... + Fn = 0. F1 = i + j, F2 = i - j, F3 = 4 i + 8 jFind the additional force required for the forces to be in equilibrium P. Choose the correct answer from the following : • F4 = -6i - 8j • F4 = -6i + 8j • F4 = 6i + 8j • F4 = 8i - 6j
Find the component of u along v. u = 10 i - 14 j , v = 2 j. Select the correct answer: • -7 • 7 • -14 • 14