Question

if cosec²theta (1 - cos theata) (1- cos theata) =value of k find the value of k​

Answer 1

Answer:

the ans is

cosec^2A(1-cosa)(1-cosa)

=1/sin^2A(1-cosA)(1-cosA)

=(1-cosA)(1-cosA)/1-cos^2A

=(1-cosA)(1-cosA)/(1+cosA)(1-cosA)

=(1-cosA) and ( 1-cosA) in numerator and denominator gets cancel

therefore the final ans is

(1-cosA)/(1+cosA)