Question

(1) If sec 0 = cosec 0 and 0° <O< 90°, find the value of
and
find the value of 0.​

Answer 1

Answer:

Θ=45°

Step-by-step explanation:

thanks

Answer 2

Step-by-step explanation:

0<θ<90

∘

secθ=cosec60

⇒secθ=

sin60

1

=

3

2

⇒

cosθ

1

=

3

2

⇒cosθ=

2

3

⇒θ=30

∘

2cos

2

θ−1=2(cos30)

2

−1

⇒2×(

2

3

)

2

−1

⇒2×

4

3

−1⇒

2

3

−1=

2

1

∴2cos

2

θ−1=

2

1