Question

Prove that (cosec thita - cot thita) = 1-cos thita/ 1+cos thita​

Answer 1

Answer:

to prove:

csc@- cot@ =1-cos@/1+cos@

lhs:

csc@-cot@

=1/sin@ - cos@/sin@

=(1-cos@)/sin@

rhs:

1-cos@/1+cos@

=1-cos@/1+cos@ x 1-cos@/1-cos@

=(1-cos@)²/1-cos²@

=(1-cos@)²/sin²@

=1-cos@/sin@

hence proved

hope it helps u....^_^