Question

sin 42° sec 48° + cos 42° cosec 48° = 2

Answer 1

=>{sin 42°sec(90°-42°) + cos(90°-48°)cosec 48°}
=>(sin 42°×cosec 42°) + (sin 48°×sec 48°)
=>1+1
=2 proved ......
hope this help uuuu..