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Find the principle value of the followingcosec^(-1)(2) |
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Answer» SOLUTION :We KNOW `SIN (pi/6)=1/2 RARR cosec (pi/6)=2` and `pi/6 in [-pi/2,pi/2]-{0}` `therefore` The principal value of `cosec^(-1)(2)=pi/6` |
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