Westonci.ca is the premier destination for reliable answers to your questions, brought to you by a community of experts. Get detailed answers to your questions from a community of experts dedicated to providing accurate information. Our platform offers a seamless experience for finding reliable answers from a network of knowledgeable professionals.
Sagot :
Sure, let's solve the given equation step-by-step:
Given equation:
[tex]\[ 4 \csc(2A) \cot(2A) = \csc^2(A) - \sec^2(A) \][/tex]
### Step-by-Step Solution:
1. Identify the components on both sides of the equation:
- LHS (Left-Hand Side): \( 4 \csc(2A) \cot(2A) \)
- RHS (Right-Hand Side): \( \csc^2(A) - \sec^2(A) \)
2. Rewrite \(\csc\) and \(\cot\) in terms of basic trigonometric functions:
- \(\csc(x) = \frac{1}{\sin(x)}\)
- \(\cot(x) = \frac{\cos(x)}{\sin(x)}\)
3. Simplify the LHS:
Substitute \(\csc(2A) = \frac{1}{\sin(2A)}\) and \(\cot(2A) = \frac{\cos(2A)}{\sin(2A)}\):
[tex]\[ 4 \csc(2A) \cot(2A) = 4 \left(\frac{1}{\sin(2A)}\right) \left(\frac{\cos(2A)}{\sin(2A)}\right) = 4 \frac{\cos(2A)}{\sin^2(2A)} \][/tex]
4. Rewrite \(\csc^2(A)\) and \(\sec^2(A)\) using their definitions in terms of sine and cosine:
[tex]\[ \csc(A) = \frac{1}{\sin(A)} \implies \csc^2(A) = \frac{1}{\sin^2(A)} \][/tex]
[tex]\[ \sec(A) = \frac{1}{\cos(A)} \implies \sec^2(A) = \frac{1}{\cos^2(A)} \][/tex]
5. Simplify the RHS:
[tex]\[ \csc^2(A) - \sec^2(A) = \frac{1}{\sin^2(A)} - \frac{1}{\cos^2(A)} \][/tex]
6. Now, compare the simplified LHS and RHS expressions:
- LHS: \( 4 \frac{\cos(2A)}{\sin^2(2A)} \)
- RHS: \( \frac{1}{\sin^2(A)} - \frac{1}{\cos^2(A)} \)
7. Establish the equation based on step 6:
[tex]\[ 4 \frac{\cos(2A)}{\sin^2(2A)} = \frac{1}{\sin^2(A)} - \frac{1}{\cos^2(A)} \][/tex]
8. Form the final equation:
[tex]\[ Eq\left(4 \cot(2A) \csc(2A), \csc^2(A) - \sec^2(A) \right) \][/tex]
Thus, when analyzing the components and simplifying, we observe that:
[tex]\[ 4 \csc(2A) \cot(2A) = \csc^2(A) - \sec^2(A) \][/tex]
is indeed an identity, showing that both sides of the given equation are equal.
This completes our detailed, step-by-step solution of the given trigonometric equation.
Given equation:
[tex]\[ 4 \csc(2A) \cot(2A) = \csc^2(A) - \sec^2(A) \][/tex]
### Step-by-Step Solution:
1. Identify the components on both sides of the equation:
- LHS (Left-Hand Side): \( 4 \csc(2A) \cot(2A) \)
- RHS (Right-Hand Side): \( \csc^2(A) - \sec^2(A) \)
2. Rewrite \(\csc\) and \(\cot\) in terms of basic trigonometric functions:
- \(\csc(x) = \frac{1}{\sin(x)}\)
- \(\cot(x) = \frac{\cos(x)}{\sin(x)}\)
3. Simplify the LHS:
Substitute \(\csc(2A) = \frac{1}{\sin(2A)}\) and \(\cot(2A) = \frac{\cos(2A)}{\sin(2A)}\):
[tex]\[ 4 \csc(2A) \cot(2A) = 4 \left(\frac{1}{\sin(2A)}\right) \left(\frac{\cos(2A)}{\sin(2A)}\right) = 4 \frac{\cos(2A)}{\sin^2(2A)} \][/tex]
4. Rewrite \(\csc^2(A)\) and \(\sec^2(A)\) using their definitions in terms of sine and cosine:
[tex]\[ \csc(A) = \frac{1}{\sin(A)} \implies \csc^2(A) = \frac{1}{\sin^2(A)} \][/tex]
[tex]\[ \sec(A) = \frac{1}{\cos(A)} \implies \sec^2(A) = \frac{1}{\cos^2(A)} \][/tex]
5. Simplify the RHS:
[tex]\[ \csc^2(A) - \sec^2(A) = \frac{1}{\sin^2(A)} - \frac{1}{\cos^2(A)} \][/tex]
6. Now, compare the simplified LHS and RHS expressions:
- LHS: \( 4 \frac{\cos(2A)}{\sin^2(2A)} \)
- RHS: \( \frac{1}{\sin^2(A)} - \frac{1}{\cos^2(A)} \)
7. Establish the equation based on step 6:
[tex]\[ 4 \frac{\cos(2A)}{\sin^2(2A)} = \frac{1}{\sin^2(A)} - \frac{1}{\cos^2(A)} \][/tex]
8. Form the final equation:
[tex]\[ Eq\left(4 \cot(2A) \csc(2A), \csc^2(A) - \sec^2(A) \right) \][/tex]
Thus, when analyzing the components and simplifying, we observe that:
[tex]\[ 4 \csc(2A) \cot(2A) = \csc^2(A) - \sec^2(A) \][/tex]
is indeed an identity, showing that both sides of the given equation are equal.
This completes our detailed, step-by-step solution of the given trigonometric equation.
We hope this information was helpful. Feel free to return anytime for more answers to your questions and concerns. Thanks for using our service. We're always here to provide accurate and up-to-date answers to all your queries. Westonci.ca is your trusted source for answers. Visit us again to find more information on diverse topics.