- Prove sin^2x(1+sec^2x)=sec^2x-cos^2x?

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Find the general solution of the differential equation. (Use C for the constant of integration.)? Can a panda and a polar bear mate? The temperature outside dropped 13 fahrenheit in 7 hours. The final temperature was -2 fahrenheit. What was the starting temperature? ? What science is used to decide which is more efficient in design and physics in comparing two golf clubs that are in the same category type? Kindly can someone solve this?