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cot^(-1)9+cosec^(-1)(sqrt(41))/(4)=(pi)/...

`cot^(-1)9+cosec^(-1)(sqrt(41))/(4)=(pi)/(4)`

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prove the following cot^(-1)9+cosec^(-1)frac(sqrt41)(4)=pi/4

cot^(-1)3+cosec^(-1)sqrt(5)=

Prove statement "cot"^(-1) 9 + "cosec"^(-1) sqrt41/4 =pi/4

The value of cot^(-1)9+"cos ec"^(-1)((sqrt(41))/(4)) , is equal to

4(cot^(-1)3+csc^(-1)sqrt(5))=pi

4(cot ^(-1)3+"cosec"^(-1) sqrt(5))=pi

sec^(-1)(4)+cosec^(-1)(4)=(pi)/2

Show that: 4(cot^(-1)(3/2)+cosec^(-1)sqrt(26))=pi .