Csc Sec Squared 31362B
1. The problem is to simplify the expression $\csc^2 x + \sec^2 x$.
2. Recall the Pythagorean identities:
- $\csc^2 x = 1 + \cot^2 x$
- $\sec^2 x = 1 + \tan^2 x$
3. Substitute these identities into the expression:
$$\csc^2 x + \sec^2 x = (1 + \cot^2 x) + (1 + \tan^2 x)$$
4. Simplify by combining like terms:
$$= 1 + \cot^2 x + 1 + \tan^2 x = 2 + \cot^2 x + \tan^2 x$$
5. Use the identity $\cot x = \frac{1}{\tan x}$, so $\cot^2 x = \frac{1}{\tan^2 x}$.
6. Rewrite the expression:
$$2 + \frac{1}{\tan^2 x} + \tan^2 x$$
7. Let $t = \tan^2 x$, then the expression becomes:
$$2 + t + \frac{1}{t}$$
8. Combine terms over a common denominator $t$:
$$2 + t + \frac{1}{t} = 2 + \frac{t^2 + 1}{t} = \frac{2t + t^2 + 1}{t}$$
9. The expression cannot be simplified further in a meaningful way without additional context.
Final answer:
$$\csc^2 x + \sec^2 x = 2 + \cot^2 x + \tan^2 x$$ or equivalently $$2 + \tan^2 x + \frac{1}{\tan^2 x}$$