Question

1
cos e
Sino + cose
Sind
26. Prove that
1-coto - 1- tane
OR
cos 0-2 cose
Prove that
=cotie
2 sino-sino​

Answer 1

Step-by-step explanation:

prove that: ( a sin 0 +b cos 0) 2+( a cos 0-b sin 0) 2=a+b 2 ... prove that :cos 0 (1 +tan'e ) +sin 0 ( 1+ coto) =2 ... cose+sincos 0-sino. 18.prove that :=2_cos thitta +sin thitta ...