Question

answer it fast please and I will mark as brainlist

Answer 1

This is the solution..

Hope it helps..

Answer 2

Answer:

√3

Step-by-step explanation:

Given: 3 sin²α + 7 cos²α = 4

⇒ 3 sin²α + 4 cos²α + 3 cos²α = 4

⇒ 4 cos²α + 3(sin² α + cos² α) = 4

⇒ 4 cos²α + 3(1) = 4

⇒ 4 cos² α + 3 = 4

⇒ 4 cos² α = 1

⇒ cos² α = 1/4

⇒ cos α = 1/2

⇒ α = 60°

Now,

tanα = tan 60°

        = √3

Hope it helps!