)-\tan(\arccos(0.8))&line2=\mathrm{Solution:\:}\frac{\sqrt{39}}{19}-\frac{3}{4} "tan(arccos(0.95))-tan(arccos(0.8))")
tan(arccos(0.95))-tan(arccos(0.8))
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&line2=\mathrm{Solution:\:}0.88068%E2%80%A6 "arccos(2/pi)")
arccos(2/pi)
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&line2=\mathrm{Solution:\:}0.64350%E2%80%A6 "arccos(0.8)")
arccos(0.8)
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Lesson Explainer: Inverse Trigonometric Functions | Nagwa
