Question

sin0 + sin²0 = 1 find value of cos²0 + cos⁴0​

Answer 1

Answer:

cos²θ + cos⁴θ = 1

Step-by-step explanation:

sin θ + sin²θ = 1

sin θ = 1 - sin²θ

sin θ = cos²θ ...(i)

cos²θ + cos⁴θ

= cos²θ + (cos²θ)²

= sin θ + (sin θ)²

= sin θ + sin²θ

= 1