Geography, asked by vickythakur5918, 1 year ago

cosec/cosecA-1+cosec/cosecA+1=2secsquare A

Answers

Answered by sabarisuresh
4

cosecA/(coseca-1)+cosec/(cosec+1)

=((cosecA)(cosecA+1)) /(cosecA-1)(cosecA+1) + (cosecA)(cosecA-1) /( cosecA+1 )*(cosecA-1)

=((cosec^2 + cosec)/cot^2) +(( cosec^@2-cosec)/cot^2)

=(2/sin^2)/(cos^2/sin^2)

=2/cos^2

=2 sec^2


sabarisuresh: mark as brianliest
Similar questions