Question

cosec(65+A)-sec(25-A)-tan(55-A)+cot(35+A)=0

Answer 1

➡HOPE THIS HELPS YOU⬇

Trigonometry is the study of angles with ratios sine, cosine, cot, tangent, cosec, sectant etc.

The main fundamental of this study is to go through the values of angles.

♧♧♧RULES♧♧♧

cosec (90 - x) = sec x

tan (90-A) = cot A


♧♧♧SOLUTION♧♧♧

Now,

L.H.S.

= cosec (65+A) - sec (25-A) - tan (55-A) + cot (35+A)

= cosec {90 - (25-A)} - sec (25-A) - tan {90 - (35+A)} + cot (35+A)

= sec (25-A) - sec (25-A) - cot (35+A) + cot (35+A)

= 0

= R.H.S. (Proved)

⬆HOPE THIS HELPS YOU⬅

Answer 2

Answer:

Refer this pic

Hope this helps you!