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OpenStudy (anonymous):
How would I solve this, Prove: tan^2 0*cos^2 0 + cos^2 0 =1? Could someone show me how to do it please? Thank you!
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OpenStudy (unklerhaukus):
use tan = sin / cos
OpenStudy (anonymous):
But there isn't sin in this equation. Unless I am reading this problem all wrong?
OpenStudy (unklerhaukus):
tan^2 θ * cos^2 θ + cos^2 θ = 1 (sin^2 θ / cos^2 θ) * cos^2 θ + cos^2 θ = 1
OpenStudy (anonymous):
Oh okay, I see what you mean! Thank you very much.
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