Question

Express sec 59 + cosec 65 in terms of angle between 0 and 45

Answer 1

sec 59 + cosec 65
sec( 90 - 31 ) + cosec ( 90 - 25 ) ---------- eq *.[ 1 ]
cosec 31° + sec 25°

eq * ----- by using sec ( 90 - A )=cosec A
cosec (90 - A)=sec A

___________________________________________________