Question

(a)2 tan A
(b)2 sec A
(c)2 cosec A
(d)2 tan A sec A​

Answer 1

Answer:

option C is correct

make tan A commo

tan A ( 1/secA-1 + 1/secA+1)

tan A ( secA+1+secA-1/sec²A-1)

tanA( 2secA/tan²A)

2( secA/ tanA)

2( 1/cosA/sinA/cosA)

2(1/sinA)

2cosecA