Question

Find x, if x^2 cosec 30° - 1/2 sec^4 60º = 0​

Answer 1

Answer:

x = + 4 or x = -4

Step-by-step explanation:

x² cosec 30 - 1/2 sec⁴ 60 = 0

x² cosec 30 = 1/2 sec⁴ 60

x² cosec 30 = 1/2 ₓ16

x² cosec 30 = 8

x² ₓ 1/2 = 8

x² = 16

x = $\sqrt{16}$

x = + 4 or x = -4