Question

answer plz fast underroot sec a-1/seca+1 =1-cosa/sin a prove​

Answer 1

Answer:

i hope this helps you mate

Answer 2

$= \sqrt{ \frac{seca - 1}{seca + 1} } \\ \\ = \sqrt{ \frac{1 - cosa}{1 + cosa} } \\ \\ = \sqrt{ \frac{( {1 - cosa)}^{2} }{ {sin}^{2} a} } \\ \\ = \frac{1 - cosa}{sina}$