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प्रश्न
Find the value of `sin^-1(cos((33π)/5))`.
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उत्तर
`sin^-1(cos((33π)/5))`
= `sin^-1 cos(6π + (3π)/5)`
= `sin^-1 cos((3π)/5)`
= `sin^-1 sin(π/2 - (3π)/5)`
= `π/2 - (3π)/5`
= `-π/10`.
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