Question

If Sinθ = 1/3, then 2Cosec²θ+ cot²θ - 1 = _______.
A] 15 b] 25 c] 50 d] 45
(Answer with explanation)

Answer 1

Step-by-step explanation:

Sinθ = 1/3

cosθ=√8/3

cosecθ=1/Sinθ=1/1/3=3

cotθ=cosθ/Sinθ=√8

2Cosec²θ+ cot²θ - 1 =2(3²)+√8²-1=2(9)+8-1=2(9)+8-1

=18+8-1=25