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OpenStudy (anonymous):
why is 1+ tan^2θ = sec^2θ ??
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OpenStudy (irishboy123):
because \(\cos^2 \theta + \sin^2 \theta = 1\) because Pythagoreas Theorem holds water....🍀 multiply your equation by \(\cos^2 \theta\) and you will get to the original identity.
OpenStudy (anonymous):
Ohh I see! Thank you @IrishBoy123
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