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The value of (cosecA.cosecB+cotA.cotB)^...

The value of `(cosecA.cosecB+cotA.cotB)^2-(cosecA.cotB+cosecB.cotA)^2`

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(cosec A. cosecB+cotA . cotB)^2-(cosec A. cotB + cosecB. cot A)^2 is

(cosec A. cosecB+cotA . cotB)^2-(cosec A. cotB + cosecB. cot A)^2 is

1/(cosecA+cotA)=cosecA-cotA

The value of (cosecA+cotA+1) (cosec A-cot A+1) -2 cosec A is:

cot(A-B)=(cotA.cotB+1)/(cotB-cotA)

cot(A+B)=(cotA.cotB-1)/(cotB+cotA)

cot(A-B)=(cotA.cotB+1)/(cotB-cotA)

The value of (cosecA + cotA +1)(cosecA - cotA + 1) - 2cosecA is: (cosecA + cotA +1)(cosecA - cotA + 1) - 2cosecA का मान है :

tan A +cotA =secA.cosecA