Question

If 4 sin 2 A - 1 = 0 find angle A , sec 2 A – tan 2 A , cosec 2 A – cot 2 A .

Answer 1

Answer:

4 sin 2A-1

is equal to both side

2×2×2×2

Answer 2

Answer:

1)sin^2 a=1/4

Sin a= root 1/4

Sin a=1/2

Sin a= Sin 60 degree

Therefore, A=60 degree

2)Sec^2A-Tan^2A

Sec^2 60- Tan^2 60

2^2- √3^2

4-3

1

3)cosec^2a-cot^2a

cosec^2 60- cot^2 60

2/√3^2 - 1/√3^2

4/3-1/3

4-1/3

3/3

1

Step-by-step explanation: