Question

how to solve this all

Answer 1

this is 4th equation ....... q=60deg. ...

Answer 2

Answer:

Step-by-step explanation:

1) 2 Sin 2Ф = √5

Sin 2Ф = √5/2

2Ф = Sin^-1 (√5/2)

Ф = 1/2* Sin^-1 (√5/2)

2) 2* Cos 3Ф = 1

Cos 3Ф = 1/2

Cos 60 = 1/2

3Ф =  60

Ф = 60/3

Ф = 20

3) √5 tan 2Ф = 3

tan 2Ф = 3/√5

2Ф = tan^-1(3/√5)

Ф = 1/2*tan^-1(3/√5)

4) 2√3 tanФ = 6

tanФ = 6/2√3

= √3

Ф = 60