Question

cos 17º+sin 17°/
cos 17° - sin 17°
= tan 62º.

​

Answer 1

Answer:

plzz mark as brainlist

Step-by-step explanation:

Let x = ( cos17 + sin17 ) / ( cos17 − sin17 )

 Dividing Numerator & Denominator by cos 17

        = ( 1 + tan17 ) / ( 1 − tan17 )

We know tan 45 = 1,

        = ( tan45 + tan17 ) / ( 1 − tan45.tan17 )

tan( A + B ) = tan A + tan B /  1 - tan A.tan B  

        

        = tan62.