9. cosec A (1 + cos A) (cosec A - cot A) = 1
Answers
Answered by
0
GIVEN THAT
cosecA(1+cosA)(cosecA-cotA)
=cosecA(1+cosA)(1/sinA-cosA/sinA)
=cosecA(1+cosA)(1-cosA/sinA)
=cosecA(1-cos^2A)/sinA
=1/sin^2A(1-cos^2A)/sinA
1-cos^2A=sin^2A
=sin^2A/sin^3A
=1/sinA
=cosecA
THIS WILL HELP YOU MORE
Similar questions