Question

Plz answer question in screen shot

Answer 1

first one 5/
`√(39)`

Explanation:

We must calculate cosθ first :

cos²θ+sin²θ =1⇒ cos²θ= 1-sin²θ=1-(25/8)= 39/64⇒cosθ= √39/8

• tanθ = sinθ/cosθ
• tanθ= (5/8)/(√39/8)=5/8*8/√39 = 5/√39