Answer:
Step-by-step explanation:
LHS = Sin² ∅ + Sin² ∅*tan² ∅
= Sin² ∅ [1 + tan² ∅ ] {Sec² ∅ - tan² ∅ = 1}
= Sin² ∅ *Sec² ∅
= Sin² ∅ * 
= Sin² ∅ /Cos² ∅
= tan² ∅ = RHS
1-4 are not there but here it is without them
step 2 would be 10
step 4 would be 10x-x = 9x =7
x = 7/9
Answer: It’s the first one.
Step-by-step explanation: it’s right on edge