Prove the Identity $$1 + \sec ^ { 2 } x \sin ^ { 2 } x = \sec ^ { 2 } x$$

question 44

Essay

Prove the identity.
- $$1 + \sec ^ { 2 } x \sin ^ { 2 } x = \sec ^ { 2 } x$$

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Simple Mail Transfer Protocol, a protocol for sending emails across the internet.

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Post Office Protocol, a standard protocol used to retrieve email from a mail server.

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