4(tan^-1 1/3 + cos^-1 2/√5) =π
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Answer:
π
Step-by-step explanation:
4(tan^-3.66+cos^-5.36)
=4[(sin^-3.66/cos^-3.66)+cos^-5.36]
=4[(sin^-3.66+cos^-10.72)/cos^-3.66]
=4(45)
=180
=π
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