Question

.. Match the following columns :
Column 'A'
sec ² 3∅ - tan² 3∅
(ü) 2 tan ∅.cot
(iii) 1 + tan-
(iv) cosec2 ∅-1
(v) cosec (90° -∅)
Column 'B'
(a) cot²∅
fb) sec∅
(c) 1
(d)2
$(e) \: sec {}^{2}$
please only give answer with explaination​

Answer 1

Answer:

2 tanA× cotA = 2

cosec2 A-1= cot2A

cosec (90-A) =sinA

sec2A-tan2A=1