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Detailed Solution
Integration of sec²x and Solving for i(x)
Let's solve the given problem:
For i(x) = ∫ sec²x - 2022 / sin²²x dx, if i(π/4) = 21011 then
Step 1: Understanding the Integral
The given function is:
i(x) = ∫ sec²x - 2022 / sin²²x dx
We need to simplify this using standard integration techniques.
Step 2: Breaking Down the Integration
The given expression can be separated as follows:
i(x) = ∫ sec²x ⋅ sin-2022x dx - 2022 ∫ sin-2022x dx
Using the known result for the integration of sec²x:
i(x) = tan x ⋅ (sin x)-2022 + ∫ (2022) tan x ⋅ (sin x)-2023 cos x dx - 2022 ∫ (sin x)-2022 dx
After integrating, we arrive at:
i(x) = (tan x) (sin x)-2022 + C
Step 3: Finding the Constant C
At x = π/4, the given condition states:
i(π/4) = 21011
Using the derived solution:
21011 = (1/√2)-2022 + C
Since (1/√2)-2022 = 21011, this gives C = 0.
Step 4: Final Form of i(x)
Therefore, the solution is:
i(x) = tan x (sin x)-2022
Step 5: Evaluating Specific Values
- For i(π/6):
i(π/6) = (1/√3) (1/2)-2022 = 22022/3 - For i(π/3):
i(π/3) = √3 (√3/2)-2022 = 22022 (3)2021 = (1/3) 1010
Step 6: Conclusion
Since i(π/6) = 3 × 1010 and i(π/3) = i(π/6), we confirm the derived solution is correct.
In conclusion, the solution showcases the steps to solve the given integral: i(x) = ∫ sec²x - 2022 / sin²²x dx and verifies the result for i(x) = tan x (sin x)-2022.