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Text Solution

Solution :

`sin^-1(sin5)+cos^-1(cos10)+tan^-1(tan(-6))+cot^-1(cot(-10))`<br>
`=sin^-1(sin(5-2pi))+cos^-1(cos(4pi-10))-tan^-1(tan(6-2pi))+pi - cot^-1(cot(10-3pi))`<br>
`=5-2pi+4pi-10-6+2pi+pi-10+3pi`<br>
`=8pi-21`<br>
`:. sin^-1(sin5)+cos^-1(cos10)+tan^-1(tan(-6))+cot^-1(cot(-10)) = 8pi-21`<br>**Recall Trigonometric Functions**

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